21372758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{51131}}^1$

素因数の和:51163

約数の個数: 16

約数和(自身を含む): 36815040

約数和(自身を除く): 15442282

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 51131, 102262, 562441, 971489, 1124882, 1942978, 10686379, 21372758]

約数ペア:

[(1, 21372758), (2, 10686379), (11, 1942978), (19, 1124882), (22, 971489), (38, 562441), (209, 102262), (418, 51131)]