21625045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{751}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 28046592

約数和(自身を除く): 6421547

約数列:

[1, 5, 13, 65, 443, 751, 2215, 3755, 5759, 9763, 28795, 48815, 332693, 1663465, 4325009, 21625045]

約数ペア:

[(1, 21625045), (5, 4325009), (13, 1663465), (65, 332693), (443, 48815), (751, 28795), (2215, 9763), (3755, 5759)]