21880751

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{523}}^1$

素因数の和:670

約数の個数: 16

約数和(自身を含む): 24447744

約数和(自身を除く): 2566993

約数列:

[1, 17, 23, 107, 391, 523, 1819, 2461, 8891, 12029, 41837, 55961, 204493, 951337, 1287103, 21880751]

約数ペア:

[(1, 21880751), (17, 1287103), (23, 951337), (107, 204493), (391, 55961), (523, 41837), (1819, 12029), (2461, 8891)]