20843615

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1451}}^1$

素因数の和:1499

約数の個数: 24

約数和(自身を含む): 28697328

約数和(自身を除く): 7853713

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1451, 2873, 7255, 14365, 18863, 24667, 94315, 123335, 245219, 320671, 1226095, 1603355, 4168723, 20843615]

約数ペア:

[(1, 20843615), (5, 4168723), (13, 1603355), (17, 1226095), (65, 320671), (85, 245219), (169, 123335), (221, 94315), (845, 24667), (1105, 18863), (1451, 14365), (2873, 7255)]