21339305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{1409}}^1$

素因数の和:1660

約数の個数: 16

約数和(自身を含む): 27714960

約数和(自身を除く): 6375655

約数列:

[1, 5, 13, 65, 233, 1165, 1409, 3029, 7045, 15145, 18317, 91585, 328297, 1641485, 4267861, 21339305]

約数ペア:

[(1, 21339305), (5, 4267861), (13, 1641485), (65, 328297), (233, 91585), (1165, 18317), (1409, 15145), (3029, 7045)]