19901409

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{2131}}^1$

素因数の和:2428

約数の個数: 16

約数和(自身を含む): 29063424

約数和(自身を除く): 9162015

約数列:

[1, 3, 11, 33, 283, 849, 2131, 3113, 6393, 9339, 23441, 70323, 603073, 1809219, 6633803, 19901409]

約数ペア:

[(1, 19901409), (3, 6633803), (11, 1809219), (33, 603073), (283, 70323), (849, 23441), (2131, 9339), (3113, 6393)]