21645489

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{953}}^1$

素因数の和:1136

約数の個数: 16

約数和(自身を含む): 29581632

約数和(自身を除く): 7936143

約数列:

[1, 3, 67, 113, 201, 339, 953, 2859, 7571, 22713, 63851, 107689, 191553, 323067, 7215163, 21645489]

約数ペア:

[(1, 21645489), (3, 7215163), (67, 323067), (113, 191553), (201, 107689), (339, 63851), (953, 22713), (2859, 7571)]