20497785

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17747}}^1$

素因数の和:17773

約数の個数: 32

約数和(自身を含む): 40891392

約数和(自身を除く): 20393607

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17747, 53241, 88735, 124229, 195217, 266205, 372687, 585651, 621145, 976085, 1366519, 1863435, 2928255, 4099557, 6832595, 20497785]

約数ペア:

[(1, 20497785), (3, 6832595), (5, 4099557), (7, 2928255), (11, 1863435), (15, 1366519), (21, 976085), (33, 621145), (35, 585651), (55, 372687), (77, 266205), (105, 195217), (165, 124229), (231, 88735), (385, 53241), (1155, 17747)]