21668759

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{853}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 26234880

約数和(自身を除く): 4566121

約数列:

[1, 7, 19, 133, 191, 853, 1337, 3629, 5971, 16207, 25403, 113449, 162923, 1140461, 3095537, 21668759]

約数ペア:

[(1, 21668759), (7, 3095537), (19, 1140461), (133, 162923), (191, 113449), (853, 25403), (1337, 16207), (3629, 5971)]