20389984

素因数分解:

$2^5\times {\mathrm{137}}^1\times {\mathrm{4651}}^1$

素因数の和:4798

約数の個数: 24

約数和(自身を含む): 40444488

約数和(自身を除く): 20054504

約数列:

[1, 2, 4, 8, 16, 32, 137, 274, 548, 1096, 2192, 4384, 4651, 9302, 18604, 37208, 74416, 148832, 637187, 1274374, 2548748, 5097496, 10194992, 20389984]

約数ペア:

[(1, 20389984), (2, 10194992), (4, 5097496), (8, 2548748), (16, 1274374), (32, 637187), (137, 148832), (274, 74416), (548, 37208), (1096, 18604), (2192, 9302), (4384, 4651)]