2021201660

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{558343}}^1$

素因数の和:558533

約数の個数: 24

約数和(自身を含む): 4267981536

約数和(自身を除く): 2246779876

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 558343, 1116686, 2233372, 2791715, 5583430, 11166860, 101060083, 202120166, 404240332, 505300415, 1010600830, 2021201660]

約数ペア:

[(1, 2021201660), (2, 1010600830), (4, 505300415), (5, 404240332), (10, 202120166), (20, 101060083), (181, 11166860), (362, 5583430), (724, 2791715), (905, 2233372), (1810, 1116686), (3620, 558343)]