28864521

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26951}}^1$

素因数の和:26981

約数の個数: 24

約数和(自身を含む): 50454144

約数和(自身を除く): 21589623

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26951, 80853, 188657, 242559, 458167, 565971, 1374501, 1697913, 3207169, 4123503, 9621507, 28864521]

約数ペア:

[(1, 28864521), (3, 9621507), (7, 4123503), (9, 3207169), (17, 1697913), (21, 1374501), (51, 565971), (63, 458167), (119, 242559), (153, 188657), (357, 80853), (1071, 26951)]