21473760

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1$

素因数の和:126

約数の個数: 288

約数和(自身を含む): 86873472

約数和(自身を除く): 65399712

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 49, 55, 56, 60, 66, 70, 77, 80, 83, 84, 88, 96, 98, 105, 110, 112, 120, 132, 140, 147, 154, 160, 165, 166, 168, 176, 196, 210, 220, 224, 231, 240, 245, 249, 264, 280, 294, 308, 330, 332, 336, 352, 385, 392, 415, 420, 440, 462, 480, 490, 498, 528, 539, 560, 581, 588, 616, 660, 664, 672, 735, 770, 784, 830, 840, 880, 913, 924, 980, 996, 1056, 1078, 1120, 1155, 1162, 1176, 1232, 1245, 1320, 1328, 1470, 1540, 1568, 1617, 1660, 1680, 1743, 1760, 1826, 1848, 1960, 1992, 2156, 2310, 2324, 2352, 2464, 2490, 2640, 2656, 2695, 2739, 2905, 2940, 3080, 3234, 3320, 3360, 3486, 3652, 3696, 3920, 3984, 4067, 4312, 4565, 4620, 4648, 4704, 4980, 5280, 5390, 5478, 5810, 5880, 6160, 6391, 6468, 6640, 6972, 7304, 7392, 7840, 7968, 8085, 8134, 8624, 8715, 9130, 9240, 9296, 9960, 10780, 10956, 11620, 11760, 12201, 12320, 12782, 12936, 13280, 13695, 13944, 14608, 16170, 16268, 17248, 17430, 18260, 18480, 18592, 19173, 19920, 20335, 21560, 21912, 23240, 23520, 24402, 25564, 25872, 27390, 27888, 29216, 31955, 32340, 32536, 34860, 36520, 36960, 38346, 39840, 40670, 43120, 43824, 44737, 46480, 48804, 51128, 51744, 54780, 55776, 61005, 63910, 64680, 65072, 69720, 73040, 76692, 81340, 86240, 87648, 89474, 92960, 95865, 97608, 102256, 109560, 122010, 127820, 129360, 130144, 134211, 139440, 146080, 153384, 162680, 178948, 191730, 195216, 204512, 219120, 223685, 244020, 255640, 258720, 268422, 278880, 306768, 325360, 357896, 383460, 390432, 438240, 447370, 488040, 511280, 536844, 613536, 650720, 671055, 715792, 766920, 894740, 976080, 1022560, 1073688, 1342110, 1431584, 1533840, 1789480, 1952160, 2147376, 2684220, 3067680, 3578960, 4294752, 5368440, 7157920, 10736880, 21473760]

約数ペア:

[(1, 21473760), (2, 10736880), (3, 7157920), (4, 5368440), (5, 4294752), (6, 3578960), (7, 3067680), (8, 2684220), (10, 2147376), (11, 1952160), (12, 1789480), (14, 1533840), (15, 1431584), (16, 1342110), (20, 1073688), (21, 1022560), (22, 976080), (24, 894740), (28, 766920), (30, 715792), (32, 671055), (33, 650720), (35, 613536), (40, 536844), (42, 511280), (44, 488040), (48, 447370), (49, 438240), (55, 390432), (56, 383460), (60, 357896), (66, 325360), (70, 306768), (77, 278880), (80, 268422), (83, 258720), (84, 255640), (88, 244020), (96, 223685), (98, 219120), (105, 204512), (110, 195216), (112, 191730), (120, 178948), (132, 162680), (140, 153384), (147, 146080), (154, 139440), (160, 134211), (165, 130144), (166, 129360), (168, 127820), (176, 122010), (196, 109560), (210, 102256), (220, 97608), (224, 95865), (231, 92960), (240, 89474), (245, 87648), (249, 86240), (264, 81340), (280, 76692), (294, 73040), (308, 69720), (330, 65072), (332, 64680), (336, 63910), (352, 61005), (385, 55776), (392, 54780), (415, 51744), (420, 51128), (440, 48804), (462, 46480), (480, 44737), (490, 43824), (498, 43120), (528, 40670), (539, 39840), (560, 38346), (581, 36960), (588, 36520), (616, 34860), (660, 32536), (664, 32340), (672, 31955), (735, 29216), (770, 27888), (784, 27390), (830, 25872), (840, 25564), (880, 24402), (913, 23520), (924, 23240), (980, 21912), (996, 21560), (1056, 20335), (1078, 19920), (1120, 19173), (1155, 18592), (1162, 18480), (1176, 18260), (1232, 17430), (1245, 17248), (1320, 16268), (1328, 16170), (1470, 14608), (1540, 13944), (1568, 13695), (1617, 13280), (1660, 12936), (1680, 12782), (1743, 12320), (1760, 12201), (1826, 11760), (1848, 11620), (1960, 10956), (1992, 10780), (2156, 9960), (2310, 9296), (2324, 9240), (2352, 9130), (2464, 8715), (2490, 8624), (2640, 8134), (2656, 8085), (2695, 7968), (2739, 7840), (2905, 7392), (2940, 7304), (3080, 6972), (3234, 6640), (3320, 6468), (3360, 6391), (3486, 6160), (3652, 5880), (3696, 5810), (3920, 5478), (3984, 5390), (4067, 5280), (4312, 4980), (4565, 4704), (4620, 4648)]