21870264

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{367}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 59351040

約数和(自身を除く): 37480776

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 191, 312, 367, 382, 573, 734, 764, 1101, 1146, 1468, 1528, 2202, 2292, 2483, 2936, 4404, 4584, 4771, 4966, 7449, 8808, 9542, 9932, 14313, 14898, 19084, 19864, 28626, 29796, 38168, 57252, 59592, 70097, 114504, 140194, 210291, 280388, 420582, 560776, 841164, 911261, 1682328, 1822522, 2733783, 3645044, 5467566, 7290088, 10935132, 21870264]

約数ペア:

[(1, 21870264), (2, 10935132), (3, 7290088), (4, 5467566), (6, 3645044), (8, 2733783), (12, 1822522), (13, 1682328), (24, 911261), (26, 841164), (39, 560776), (52, 420582), (78, 280388), (104, 210291), (156, 140194), (191, 114504), (312, 70097), (367, 59592), (382, 57252), (573, 38168), (734, 29796), (764, 28626), (1101, 19864), (1146, 19084), (1468, 14898), (1528, 14313), (2202, 9932), (2292, 9542), (2483, 8808), (2936, 7449), (4404, 4966), (4584, 4771)]