21317640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177647}}^1$

素因数の和:177661

約数の個数: 32

約数和(自身を含む): 63953280

約数和(自身を除く): 42635640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177647, 355294, 532941, 710588, 888235, 1065882, 1421176, 1776470, 2131764, 2664705, 3552940, 4263528, 5329410, 7105880, 10658820, 21317640]

約数ペア:

[(1, 21317640), (2, 10658820), (3, 7105880), (4, 5329410), (5, 4263528), (6, 3552940), (8, 2664705), (10, 2131764), (12, 1776470), (15, 1421176), (20, 1065882), (24, 888235), (30, 710588), (40, 532941), (60, 355294), (120, 177647)]