256830291

素因数分解:

$3^3\times {\mathrm{503}}^1\times {\mathrm{18911}}^1$

素因数の和:19423

約数の個数: 16

約数和(自身を含む): 381265920

約数和(自身を除く): 124435629

約数列:

[1, 3, 9, 27, 503, 1509, 4527, 13581, 18911, 56733, 170199, 510597, 9512233, 28536699, 85610097, 256830291]

約数ペア:

[(1, 256830291), (3, 85610097), (9, 28536699), (27, 9512233), (503, 510597), (1509, 170199), (4527, 56733), (13581, 18911)]