21411995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{5333}}^1$

素因数の和:5422

約数の個数: 16

約数和(自身を含む): 28419552

約数和(自身を除く): 7007557

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 5333, 26665, 58663, 293315, 389309, 1946545, 4282399, 21411995]

約数ペア:

[(1, 21411995), (5, 4282399), (11, 1946545), (55, 389309), (73, 293315), (365, 58663), (803, 26665), (4015, 5333)]