21000724788

素因数分解:

$2^2\times 3^1\times {\mathrm{2579}}^1\times {\mathrm{678581}}^1$

素因数の和:681167

約数の個数: 24

約数和(自身を含む): 49020763680

約数和(自身を除く): 28020038892

約数列:

[1, 2, 3, 4, 6, 12, 2579, 5158, 7737, 10316, 15474, 30948, 678581, 1357162, 2035743, 2714324, 4071486, 8142972, 1750060399, 3500120798, 5250181197, 7000241596, 10500362394, 21000724788]

約数ペア:

[(1, 21000724788), (2, 10500362394), (3, 7000241596), (4, 5250181197), (6, 3500120798), (12, 1750060399), (2579, 8142972), (5158, 4071486), (7737, 2714324), (10316, 2035743), (15474, 1357162), (30948, 678581)]