19156257

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{3877}}^1$

素因数の和:3950

約数の個数: 20

約数和(自身を含む): 29092756

約数和(自身を除く): 9936499

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 3877, 4941, 11631, 34893, 104679, 236497, 314037, 709491, 2128473, 6385419, 19156257]

約数ペア:

[(1, 19156257), (3, 6385419), (9, 2128473), (27, 709491), (61, 314037), (81, 236497), (183, 104679), (549, 34893), (1647, 11631), (3877, 4941)]