21954937

素因数分解:

${\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1096

約数の個数: 12

約数和(自身を含む): 23574756

約数和(自身を除く): 1619819

約数列:

[1, 19, 61, 361, 997, 1159, 18943, 22021, 60817, 359917, 1155523, 21954937]

約数ペア:

[(1, 21954937), (19, 1155523), (61, 359917), (361, 60817), (997, 22021), (1159, 18943)]