21907126

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1\times {\mathrm{887}}^1$

素因数の和:1175

約数の個数: 16

約数和(自身を含む): 33662304

約数和(自身を除く): 11755178

約数列:

[1, 2, 53, 106, 233, 466, 887, 1774, 12349, 24698, 47011, 94022, 206671, 413342, 10953563, 21907126]

約数ペア:

[(1, 21907126), (2, 10953563), (53, 413342), (106, 206671), (233, 94022), (466, 47011), (887, 24698), (1774, 12349)]