21690144

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 216

約数和(自身を含む): 75626460

約数和(自身を除く): 53936316

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 32, 36, 42, 48, 49, 53, 56, 58, 63, 72, 84, 87, 96, 98, 106, 112, 116, 126, 144, 147, 159, 168, 174, 196, 203, 212, 224, 232, 252, 261, 288, 294, 318, 336, 348, 371, 392, 406, 424, 441, 464, 477, 504, 522, 588, 609, 636, 672, 696, 742, 784, 812, 848, 882, 928, 954, 1008, 1044, 1113, 1176, 1218, 1272, 1392, 1421, 1484, 1537, 1568, 1624, 1696, 1764, 1827, 1908, 2016, 2088, 2226, 2352, 2436, 2544, 2597, 2784, 2842, 2968, 3074, 3248, 3339, 3528, 3654, 3816, 4176, 4263, 4452, 4611, 4704, 4872, 5088, 5194, 5684, 5936, 6148, 6496, 6678, 7056, 7308, 7632, 7791, 8352, 8526, 8904, 9222, 9744, 10388, 10759, 11368, 11872, 12296, 12789, 13356, 13833, 14112, 14616, 15264, 15582, 17052, 17808, 18444, 19488, 20776, 21518, 22736, 23373, 24592, 25578, 26712, 27666, 29232, 31164, 32277, 34104, 35616, 36888, 41552, 43036, 45472, 46746, 49184, 51156, 53424, 55332, 58464, 62328, 64554, 68208, 73776, 75313, 83104, 86072, 93492, 96831, 102312, 106848, 110664, 124656, 129108, 136416, 147552, 150626, 172144, 186984, 193662, 204624, 221328, 225939, 249312, 258216, 301252, 344288, 373968, 387324, 409248, 442656, 451878, 516432, 602504, 677817, 747936, 774648, 903756, 1032864, 1205008, 1355634, 1549296, 1807512, 2410016, 2711268, 3098592, 3615024, 5422536, 7230048, 10845072, 21690144]

約数ペア:

[(1, 21690144), (2, 10845072), (3, 7230048), (4, 5422536), (6, 3615024), (7, 3098592), (8, 2711268), (9, 2410016), (12, 1807512), (14, 1549296), (16, 1355634), (18, 1205008), (21, 1032864), (24, 903756), (28, 774648), (29, 747936), (32, 677817), (36, 602504), (42, 516432), (48, 451878), (49, 442656), (53, 409248), (56, 387324), (58, 373968), (63, 344288), (72, 301252), (84, 258216), (87, 249312), (96, 225939), (98, 221328), (106, 204624), (112, 193662), (116, 186984), (126, 172144), (144, 150626), (147, 147552), (159, 136416), (168, 129108), (174, 124656), (196, 110664), (203, 106848), (212, 102312), (224, 96831), (232, 93492), (252, 86072), (261, 83104), (288, 75313), (294, 73776), (318, 68208), (336, 64554), (348, 62328), (371, 58464), (392, 55332), (406, 53424), (424, 51156), (441, 49184), (464, 46746), (477, 45472), (504, 43036), (522, 41552), (588, 36888), (609, 35616), (636, 34104), (672, 32277), (696, 31164), (742, 29232), (784, 27666), (812, 26712), (848, 25578), (882, 24592), (928, 23373), (954, 22736), (1008, 21518), (1044, 20776), (1113, 19488), (1176, 18444), (1218, 17808), (1272, 17052), (1392, 15582), (1421, 15264), (1484, 14616), (1537, 14112), (1568, 13833), (1624, 13356), (1696, 12789), (1764, 12296), (1827, 11872), (1908, 11368), (2016, 10759), (2088, 10388), (2226, 9744), (2352, 9222), (2436, 8904), (2544, 8526), (2597, 8352), (2784, 7791), (2842, 7632), (2968, 7308), (3074, 7056), (3248, 6678), (3339, 6496), (3528, 6148), (3654, 5936), (3816, 5684), (4176, 5194), (4263, 5088), (4452, 4872), (4611, 4704)]