28478205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{90407}}^1$

素因数の和:90425

約数の個数: 24

約数和(自身を含む): 56414592

約数和(自身を除く): 27936387

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 90407, 271221, 452035, 632849, 813663, 1356105, 1898547, 3164245, 4068315, 5695641, 9492735, 28478205]

約数ペア:

[(1, 28478205), (3, 9492735), (5, 5695641), (7, 4068315), (9, 3164245), (15, 1898547), (21, 1356105), (35, 813663), (45, 632849), (63, 452035), (105, 271221), (315, 90407)]