21681186121

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1189901}}^1$

素因数の和:1190064

約数の個数: 16

約数和(自身を含む): 26273036160

約数和(自身を除く): 4591850039

約数列:

[1, 7, 19, 133, 137, 959, 2603, 18221, 1189901, 8329307, 22608119, 158256833, 163016437, 1141115059, 3097312303, 21681186121]

約数ペア:

[(1, 21681186121), (7, 3097312303), (19, 1141115059), (133, 163016437), (137, 158256833), (959, 22608119), (2603, 8329307), (18221, 1189901)]