21085620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351427}}^1$

素因数の和:351439

約数の個数: 24

約数和(自身を含む): 59039904

約数和(自身を除く): 37954284

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351427, 702854, 1054281, 1405708, 1757135, 2108562, 3514270, 4217124, 5271405, 7028540, 10542810, 21085620]

約数ペア:

[(1, 21085620), (2, 10542810), (3, 7028540), (4, 5271405), (5, 4217124), (6, 3514270), (10, 2108562), (12, 1757135), (15, 1405708), (20, 1054281), (30, 702854), (60, 351427)]