20660115

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28109}}^1$

素因数の和:28131

約数の個数: 24

約数和(自身を含む): 38454480

約数和(自身を除く): 17794365

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28109, 84327, 140545, 196763, 421635, 590289, 983815, 1377341, 2951445, 4132023, 6886705, 20660115]

約数ペア:

[(1, 20660115), (3, 6886705), (5, 4132023), (7, 2951445), (15, 1377341), (21, 983815), (35, 590289), (49, 421635), (105, 196763), (147, 140545), (245, 84327), (735, 28109)]