20200383

素因数分解:

$3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1031}}^1$

素因数の和:1355

約数の個数: 24

約数和(自身を含む): 33486336

約数和(自身を除く): 13285953

約数列:

[1, 3, 7, 9, 21, 63, 311, 933, 1031, 2177, 2799, 3093, 6531, 7217, 9279, 19593, 21651, 64953, 320641, 961923, 2244487, 2885769, 6733461, 20200383]

約数ペア:

[(1, 20200383), (3, 6733461), (7, 2885769), (9, 2244487), (21, 961923), (63, 320641), (311, 64953), (933, 21651), (1031, 19593), (2177, 9279), (2799, 7217), (3093, 6531)]