21652799

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2293}}^1$

素因数の和:2390

約数の個数: 16

約数和(自身を含む): 26426880

約数和(自身を除く): 4774081

約数列:

[1, 7, 19, 71, 133, 497, 1349, 2293, 9443, 16051, 43567, 162803, 304969, 1139621, 3093257, 21652799]

約数ペア:

[(1, 21652799), (7, 3093257), (19, 1139621), (71, 304969), (133, 162803), (497, 43567), (1349, 16051), (2293, 9443)]