21280957

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1471}}^1$

素因数の和:1548

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 2883395

約数列:

[1, 17, 23, 37, 391, 629, 851, 1471, 14467, 25007, 33833, 54427, 575161, 925259, 1251821, 21280957]

約数ペア:

[(1, 21280957), (17, 1251821), (23, 925259), (37, 575161), (391, 54427), (629, 33833), (851, 25007), (1471, 14467)]