18333620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12911}}^1$

素因数の和:12991

約数の個数: 24

約数和(自身を含む): 39045888

約数和(自身を除く): 20712268

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 12911, 25822, 51644, 64555, 129110, 258220, 916681, 1833362, 3666724, 4583405, 9166810, 18333620]

約数ペア:

[(1, 18333620), (2, 9166810), (4, 4583405), (5, 3666724), (10, 1833362), (20, 916681), (71, 258220), (142, 129110), (284, 64555), (355, 51644), (710, 25822), (1420, 12911)]