256803897

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{89261}}^1$

素因数の和:89408

約数の個数: 16

約数和(自身を含む): 394180992

約数和(自身を除く): 137377095

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 89261, 267783, 624827, 1874481, 12228757, 36686271, 85601299, 256803897]

約数ペア:

[(1, 256803897), (3, 85601299), (7, 36686271), (21, 12228757), (137, 1874481), (411, 624827), (959, 267783), (2877, 89261)]