21145016

素因数分解:

$2^3\times {\mathrm{1213}}^1\times {\mathrm{2179}}^1$

素因数の和:3398

約数の個数: 16

約数和(自身を含む): 39697800

約数和(自身を除く): 18552784

約数列:

[1, 2, 4, 8, 1213, 2179, 2426, 4358, 4852, 8716, 9704, 17432, 2643127, 5286254, 10572508, 21145016]

約数ペア:

[(1, 21145016), (2, 10572508), (4, 5286254), (8, 2643127), (1213, 17432), (2179, 9704), (2426, 8716), (4358, 4852)]