21520860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358681}}^1$

素因数の和:358693

約数の個数: 24

約数和(自身を含む): 60258576

約数和(自身を除く): 38737716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358681, 717362, 1076043, 1434724, 1793405, 2152086, 3586810, 4304172, 5380215, 7173620, 10760430, 21520860]

約数ペア:

[(1, 21520860), (2, 10760430), (3, 7173620), (4, 5380215), (5, 4304172), (6, 3586810), (10, 2152086), (12, 1793405), (15, 1434724), (20, 1076043), (30, 717362), (60, 358681)]