21903840

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:122

約数の個数: 288

約数和(自身を含む): 89159616

約数和(自身を除く): 67255776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 41, 42, 45, 48, 53, 56, 60, 63, 70, 72, 80, 82, 84, 90, 96, 105, 106, 112, 120, 123, 126, 140, 144, 159, 160, 164, 168, 180, 205, 210, 212, 224, 240, 246, 252, 265, 280, 287, 288, 315, 318, 328, 336, 360, 369, 371, 410, 420, 424, 477, 480, 492, 504, 530, 560, 574, 615, 630, 636, 656, 672, 720, 738, 742, 795, 820, 840, 848, 861, 954, 984, 1008, 1060, 1113, 1120, 1148, 1230, 1260, 1272, 1312, 1435, 1440, 1476, 1484, 1590, 1640, 1680, 1696, 1722, 1845, 1855, 1908, 1968, 2016, 2120, 2173, 2226, 2296, 2385, 2460, 2520, 2544, 2583, 2870, 2952, 2968, 3180, 3280, 3339, 3360, 3444, 3690, 3710, 3816, 3936, 4240, 4305, 4346, 4452, 4592, 4770, 4920, 5040, 5088, 5166, 5565, 5740, 5904, 5936, 6360, 6519, 6560, 6678, 6888, 7380, 7420, 7632, 8480, 8610, 8692, 8904, 9184, 9540, 9840, 10080, 10332, 10865, 11130, 11480, 11808, 11872, 12720, 12915, 13038, 13356, 13776, 14760, 14840, 15211, 15264, 16695, 17220, 17384, 17808, 19080, 19557, 19680, 20664, 21730, 22260, 22960, 25440, 25830, 26076, 26712, 27552, 29520, 29680, 30422, 32595, 33390, 34440, 34768, 35616, 38160, 39114, 41328, 43460, 44520, 45633, 45920, 51660, 52152, 53424, 59040, 59360, 60844, 65190, 66780, 68880, 69536, 76055, 76320, 78228, 82656, 86920, 89040, 91266, 97785, 103320, 104304, 106848, 121688, 130380, 133560, 136899, 137760, 152110, 156456, 173840, 178080, 182532, 195570, 206640, 208608, 228165, 243376, 260760, 267120, 273798, 304220, 312912, 347680, 365064, 391140, 413280, 456330, 486752, 521520, 534240, 547596, 608440, 625824, 684495, 730128, 782280, 912660, 1043040, 1095192, 1216880, 1368990, 1460256, 1564560, 1825320, 2190384, 2433760, 2737980, 3129120, 3650640, 4380768, 5475960, 7301280, 10951920, 21903840]

約数ペア:

[(1, 21903840), (2, 10951920), (3, 7301280), (4, 5475960), (5, 4380768), (6, 3650640), (7, 3129120), (8, 2737980), (9, 2433760), (10, 2190384), (12, 1825320), (14, 1564560), (15, 1460256), (16, 1368990), (18, 1216880), (20, 1095192), (21, 1043040), (24, 912660), (28, 782280), (30, 730128), (32, 684495), (35, 625824), (36, 608440), (40, 547596), (41, 534240), (42, 521520), (45, 486752), (48, 456330), (53, 413280), (56, 391140), (60, 365064), (63, 347680), (70, 312912), (72, 304220), (80, 273798), (82, 267120), (84, 260760), (90, 243376), (96, 228165), (105, 208608), (106, 206640), (112, 195570), (120, 182532), (123, 178080), (126, 173840), (140, 156456), (144, 152110), (159, 137760), (160, 136899), (164, 133560), (168, 130380), (180, 121688), (205, 106848), (210, 104304), (212, 103320), (224, 97785), (240, 91266), (246, 89040), (252, 86920), (265, 82656), (280, 78228), (287, 76320), (288, 76055), (315, 69536), (318, 68880), (328, 66780), (336, 65190), (360, 60844), (369, 59360), (371, 59040), (410, 53424), (420, 52152), (424, 51660), (477, 45920), (480, 45633), (492, 44520), (504, 43460), (530, 41328), (560, 39114), (574, 38160), (615, 35616), (630, 34768), (636, 34440), (656, 33390), (672, 32595), (720, 30422), (738, 29680), (742, 29520), (795, 27552), (820, 26712), (840, 26076), (848, 25830), (861, 25440), (954, 22960), (984, 22260), (1008, 21730), (1060, 20664), (1113, 19680), (1120, 19557), (1148, 19080), (1230, 17808), (1260, 17384), (1272, 17220), (1312, 16695), (1435, 15264), (1440, 15211), (1476, 14840), (1484, 14760), (1590, 13776), (1640, 13356), (1680, 13038), (1696, 12915), (1722, 12720), (1845, 11872), (1855, 11808), (1908, 11480), (1968, 11130), (2016, 10865), (2120, 10332), (2173, 10080), (2226, 9840), (2296, 9540), (2385, 9184), (2460, 8904), (2520, 8692), (2544, 8610), (2583, 8480), (2870, 7632), (2952, 7420), (2968, 7380), (3180, 6888), (3280, 6678), (3339, 6560), (3360, 6519), (3444, 6360), (3690, 5936), (3710, 5904), (3816, 5740), (3936, 5565), (4240, 5166), (4305, 5088), (4346, 5040), (4452, 4920), (4592, 4770)]