21266530

素因数分解:

$2^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{2087}}^1$

素因数の和:3113

約数の個数: 16

約数和(自身を含む): 38335680

約数和(自身を除く): 17069150

約数列:

[1, 2, 5, 10, 1019, 2038, 2087, 4174, 5095, 10190, 10435, 20870, 2126653, 4253306, 10633265, 21266530]

約数ペア:

[(1, 21266530), (2, 10633265), (5, 4253306), (10, 2126653), (1019, 20870), (2038, 10435), (2087, 10190), (4174, 5095)]