21621717

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1021}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 33852728

約数和(自身を除く): 12231011

約数列:

[1, 3, 9, 13, 39, 117, 181, 543, 1021, 1629, 2353, 3063, 7059, 9189, 13273, 21177, 39819, 119457, 184801, 554403, 1663209, 2402413, 7207239, 21621717]

約数ペア:

[(1, 21621717), (3, 7207239), (9, 2402413), (13, 1663209), (39, 554403), (117, 184801), (181, 119457), (543, 39819), (1021, 21177), (1629, 13273), (2353, 9189), (3063, 7059)]