21000209054

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8447389}}^1$

素因数の和:8447515

約数の個数: 16

約数和(自身を含む): 34668088560

約数和(自身を除く): 13667879506

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8447389, 16894778, 92921279, 185842558, 954554957, 1909109914, 10500104527, 21000209054]

約数ペア:

[(1, 21000209054), (2, 10500104527), (11, 1909109914), (22, 954554957), (113, 185842558), (226, 92921279), (1243, 16894778), (2486, 8447389)]