21311470

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{14303}}^1$

素因数の和:14459

約数の個数: 16

約数和(自身を含む): 38620800

約数和(自身を除く): 17309330

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 14303, 28606, 71515, 143030, 2131147, 4262294, 10655735, 21311470]

約数ペア:

[(1, 21311470), (2, 10655735), (5, 4262294), (10, 2131147), (149, 143030), (298, 71515), (745, 28606), (1490, 14303)]