20838111

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{7243}}^1$

素因数の和:7390

約数の個数: 16

約数和(自身を含む): 31989504

約数和(自身を除く): 11151393

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 7243, 21729, 50701, 152103, 992291, 2976873, 6946037, 20838111]

約数ペア:

[(1, 20838111), (3, 6946037), (7, 2976873), (21, 992291), (137, 152103), (411, 50701), (959, 21729), (2877, 7243)]