20159873391

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{25945783}}^1$

素因数の和:25945830

約数の個数: 16

約数和(自身を含む): 31550073344

約数和(自身を除く): 11390199953

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 25945783, 77837349, 181620481, 544861443, 959993971, 2879981913, 6719957797, 20159873391]

約数ペア:

[(1, 20159873391), (3, 6719957797), (7, 2879981913), (21, 959993971), (37, 544861443), (111, 181620481), (259, 77837349), (777, 25945783)]