21089038

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1\times {\mathrm{547}}^1$

素因数の和:1107

約数の個数: 16

約数和(自身を含む): 32610384

約数和(自身を除く): 11521346

約数列:

[1, 2, 37, 74, 521, 547, 1042, 1094, 19277, 20239, 38554, 40478, 284987, 569974, 10544519, 21089038]

約数ペア:

[(1, 21089038), (2, 10544519), (37, 569974), (74, 284987), (521, 40478), (547, 38554), (1042, 20239), (1094, 19277)]