20135997

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7433}}^1$

素因数の和:7489

約数の個数: 24

約数和(自身を含む): 34017984

約数和(自身を除く): 13881987

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7433, 22299, 52031, 66897, 156093, 319619, 468279, 958857, 2237333, 2876571, 6711999, 20135997]

約数ペア:

[(1, 20135997), (3, 6711999), (7, 2876571), (9, 2237333), (21, 958857), (43, 468279), (63, 319619), (129, 156093), (301, 66897), (387, 52031), (903, 22299), (2709, 7433)]