21104040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2477}}^1$

素因数の和:2562

約数の個数: 64

約数和(自身を含む): 64229760

約数和(自身を除く): 43125720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2477, 2840, 4260, 4954, 7431, 8520, 9908, 12385, 14862, 19816, 24770, 29724, 37155, 49540, 59448, 74310, 99080, 148620, 175867, 297240, 351734, 527601, 703468, 879335, 1055202, 1406936, 1758670, 2110404, 2638005, 3517340, 4220808, 5276010, 7034680, 10552020, 21104040]

約数ペア:

[(1, 21104040), (2, 10552020), (3, 7034680), (4, 5276010), (5, 4220808), (6, 3517340), (8, 2638005), (10, 2110404), (12, 1758670), (15, 1406936), (20, 1055202), (24, 879335), (30, 703468), (40, 527601), (60, 351734), (71, 297240), (120, 175867), (142, 148620), (213, 99080), (284, 74310), (355, 59448), (426, 49540), (568, 37155), (710, 29724), (852, 24770), (1065, 19816), (1420, 14862), (1704, 12385), (2130, 9908), (2477, 8520), (2840, 7431), (4260, 4954)]