21028176

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:313

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 43967664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 47, 48, 52, 72, 78, 94, 104, 117, 141, 144, 156, 188, 208, 234, 239, 282, 312, 376, 423, 468, 478, 564, 611, 624, 717, 752, 846, 936, 956, 1128, 1222, 1434, 1692, 1833, 1872, 1912, 2151, 2256, 2444, 2868, 3107, 3384, 3666, 3824, 4302, 4888, 5499, 5736, 6214, 6768, 7332, 8604, 9321, 9776, 10998, 11233, 11472, 12428, 14664, 17208, 18642, 21996, 22466, 24856, 27963, 29328, 33699, 34416, 37284, 43992, 44932, 49712, 55926, 67398, 74568, 87984, 89864, 101097, 111852, 134796, 146029, 149136, 179728, 202194, 223704, 269592, 292058, 404388, 438087, 447408, 539184, 584116, 808776, 876174, 1168232, 1314261, 1617552, 1752348, 2336464, 2628522, 3504696, 5257044, 7009392, 10514088, 21028176]

約数ペア:

[(1, 21028176), (2, 10514088), (3, 7009392), (4, 5257044), (6, 3504696), (8, 2628522), (9, 2336464), (12, 1752348), (13, 1617552), (16, 1314261), (18, 1168232), (24, 876174), (26, 808776), (36, 584116), (39, 539184), (47, 447408), (48, 438087), (52, 404388), (72, 292058), (78, 269592), (94, 223704), (104, 202194), (117, 179728), (141, 149136), (144, 146029), (156, 134796), (188, 111852), (208, 101097), (234, 89864), (239, 87984), (282, 74568), (312, 67398), (376, 55926), (423, 49712), (468, 44932), (478, 43992), (564, 37284), (611, 34416), (624, 33699), (717, 29328), (752, 27963), (846, 24856), (936, 22466), (956, 21996), (1128, 18642), (1222, 17208), (1434, 14664), (1692, 12428), (1833, 11472), (1872, 11233), (1912, 10998), (2151, 9776), (2256, 9321), (2444, 8604), (2868, 7332), (3107, 6768), (3384, 6214), (3666, 5736), (3824, 5499), (4302, 4888)]