20704145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53777}}^1$

素因数の和:53800

約数の個数: 16

約数和(自身を含む): 30976128

約数和(自身を除く): 10271983

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53777, 268885, 376439, 591547, 1882195, 2957735, 4140829, 20704145]

約数ペア:

[(1, 20704145), (5, 4140829), (7, 2957735), (11, 1882195), (35, 591547), (55, 376439), (77, 268885), (385, 53777)]