21917678

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{19889}}^1$

素因数の和:19939

約数の個数: 16

約数和(自身を含む): 35802000

約数和(自身を除く): 13884322

約数列:

[1, 2, 19, 29, 38, 58, 551, 1102, 19889, 39778, 377891, 576781, 755782, 1153562, 10958839, 21917678]

約数ペア:

[(1, 21917678), (2, 10958839), (19, 1153562), (29, 755782), (38, 576781), (58, 377891), (551, 39778), (1102, 19889)]