20858590

素因数分解:

$2^1\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{1579}}^1$

素因数の和:2907

約数の個数: 16

約数和(自身を含む): 37597680

約数和(自身を除く): 16739090

約数列:

[1, 2, 5, 10, 1321, 1579, 2642, 3158, 6605, 7895, 13210, 15790, 2085859, 4171718, 10429295, 20858590]

約数ペア:

[(1, 20858590), (2, 10429295), (5, 4171718), (10, 2085859), (1321, 15790), (1579, 13210), (2642, 7895), (3158, 6605)]