21421707

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{1093}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 29406720

約数和(自身を除く): 7985013

約数列:

[1, 3, 47, 139, 141, 417, 1093, 3279, 6533, 19599, 51371, 151927, 154113, 455781, 7140569, 21421707]

約数ペア:

[(1, 21421707), (3, 7140569), (47, 455781), (139, 154113), (141, 151927), (417, 51371), (1093, 19599), (3279, 6533)]