21035640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{571}}^1$

素因数の和:892

約数の個数: 64

約数和(自身を含む): 63423360

約数和(自身を除く): 42387720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 307, 571, 614, 921, 1142, 1228, 1535, 1713, 1842, 2284, 2456, 2855, 3070, 3426, 3684, 4568, 4605, 5710, 6140, 6852, 7368, 8565, 9210, 11420, 12280, 13704, 17130, 18420, 22840, 34260, 36840, 68520, 175297, 350594, 525891, 701188, 876485, 1051782, 1402376, 1752970, 2103564, 2629455, 3505940, 4207128, 5258910, 7011880, 10517820, 21035640]

約数ペア:

[(1, 21035640), (2, 10517820), (3, 7011880), (4, 5258910), (5, 4207128), (6, 3505940), (8, 2629455), (10, 2103564), (12, 1752970), (15, 1402376), (20, 1051782), (24, 876485), (30, 701188), (40, 525891), (60, 350594), (120, 175297), (307, 68520), (571, 36840), (614, 34260), (921, 22840), (1142, 18420), (1228, 17130), (1535, 13704), (1713, 12280), (1842, 11420), (2284, 9210), (2456, 8565), (2855, 7368), (3070, 6852), (3426, 6140), (3684, 5710), (4568, 4605)]