21808860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{363481}}^1$

素因数の和:363493

約数の個数: 24

約数和(自身を含む): 61064976

約数和(自身を除く): 39256116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 363481, 726962, 1090443, 1453924, 1817405, 2180886, 3634810, 4361772, 5452215, 7269620, 10904430, 21808860]

約数ペア:

[(1, 21808860), (2, 10904430), (3, 7269620), (4, 5452215), (5, 4361772), (6, 3634810), (10, 2180886), (12, 1817405), (15, 1453924), (20, 1090443), (30, 726962), (60, 363481)]