21025236427

素因数分解:

${\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{19801}}^1$

素因数の和:19991

約数の個数: 24

約数和(自身を含む): 23366043168

約数和(自身を除く): 2340806741

約数列:

[1, 13, 61, 103, 169, 793, 1339, 6283, 10309, 17407, 19801, 81679, 257413, 1061827, 1207861, 2039503, 3346369, 15702193, 26513539, 124409683, 204128509, 344676007, 1617325879, 21025236427]

約数ペア:

[(1, 21025236427), (13, 1617325879), (61, 344676007), (103, 204128509), (169, 124409683), (793, 26513539), (1339, 15702193), (6283, 3346369), (10309, 2039503), (17407, 1207861), (19801, 1061827), (81679, 257413)]