71666781

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 106748928

約数和(自身を除く): 35082147

約数列:

[1, 3, 17, 23, 51, 69, 107, 321, 391, 571, 1173, 1713, 1819, 2461, 5457, 7383, 9707, 13133, 29121, 39399, 41837, 61097, 125511, 183291, 223261, 669783, 1038649, 1405231, 3115947, 4215693, 23888927, 71666781]

約数ペア:

[(1, 71666781), (3, 23888927), (17, 4215693), (23, 3115947), (51, 1405231), (69, 1038649), (107, 669783), (321, 223261), (391, 183291), (571, 125511), (1173, 61097), (1713, 41837), (1819, 39399), (2461, 29121), (5457, 13133), (7383, 9707)]