21648075

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{9311}}^1$

素因数の和:9355

約数の個数: 24

約数和(自身を含む): 36950016

約数和(自身を除く): 15301941

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 9311, 27933, 46555, 139665, 232775, 288641, 698325, 865923, 1443205, 4329615, 7216025, 21648075]

約数ペア:

[(1, 21648075), (3, 7216025), (5, 4329615), (15, 1443205), (25, 865923), (31, 698325), (75, 288641), (93, 232775), (155, 139665), (465, 46555), (775, 27933), (2325, 9311)]