21147310

素因数分解:

$2^1\times 5^1\times {\mathrm{659}}^1\times {\mathrm{3209}}^1$

素因数の和:3875

約数の個数: 16

約数和(自身を含む): 38134800

約数和(自身を除く): 16987490

約数列:

[1, 2, 5, 10, 659, 1318, 3209, 3295, 6418, 6590, 16045, 32090, 2114731, 4229462, 10573655, 21147310]

約数ペア:

[(1, 21147310), (2, 10573655), (5, 4229462), (10, 2114731), (659, 32090), (1318, 16045), (3209, 6590), (3295, 6418)]