21251625

素因数分解:

$3^1\times 5^3\times {\mathrm{56671}}^1$

素因数の和:56689

約数の個数: 16

約数和(自身を含む): 35363328

約数和(自身を除く): 14111703

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 56671, 170013, 283355, 850065, 1416775, 4250325, 7083875, 21251625]

約数ペア:

[(1, 21251625), (3, 7083875), (5, 4250325), (15, 1416775), (25, 850065), (75, 283355), (125, 170013), (375, 56671)]