21086445

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{11069}}^1$

素因数の和:11204

約数の個数: 16

約数和(自身を含む): 34007040

約数和(自身を除く): 12920595

約数列:

[1, 3, 5, 15, 127, 381, 635, 1905, 11069, 33207, 55345, 166035, 1405763, 4217289, 7028815, 21086445]

約数ペア:

[(1, 21086445), (3, 7028815), (5, 4217289), (15, 1405763), (127, 166035), (381, 55345), (635, 33207), (1905, 11069)]