221509420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1006861}}^1$

素因数の和:1006881

約数の個数: 24

約数和(自身を含む): 507458448

約数和(自身を除く): 285949028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1006861, 2013722, 4027444, 5034305, 10068610, 11075471, 20137220, 22150942, 44301884, 55377355, 110754710, 221509420]

約数ペア:

[(1, 221509420), (2, 110754710), (4, 55377355), (5, 44301884), (10, 22150942), (11, 20137220), (20, 11075471), (22, 10068610), (44, 5034305), (55, 4027444), (110, 2013722), (220, 1006861)]