21864620

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20627}}^1$

素因数の和:20689

約数の個数: 24

約数和(自身を含む): 46784304

約数和(自身を除く): 24919684

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 20627, 41254, 82508, 103135, 206270, 412540, 1093231, 2186462, 4372924, 5466155, 10932310, 21864620]

約数ペア:

[(1, 21864620), (2, 10932310), (4, 5466155), (5, 4372924), (10, 2186462), (20, 1093231), (53, 412540), (106, 206270), (212, 103135), (265, 82508), (530, 41254), (1060, 20627)]