21337475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1549}}^1$

素因数の和:1607

約数の個数: 24

約数和(自身を含む): 28830000

約数和(自身を除く): 7492525

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1549, 2755, 7745, 13775, 29431, 38725, 44921, 147155, 224605, 735775, 853499, 1123025, 4267495, 21337475]

約数ペア:

[(1, 21337475), (5, 4267495), (19, 1123025), (25, 853499), (29, 735775), (95, 224605), (145, 147155), (475, 44921), (551, 38725), (725, 29431), (1549, 13775), (2755, 7745)]