19909980251

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{4001}}^1\times {\mathrm{5189}}^1$

素因数の和:9334

約数の個数: 16

約数和(自身を含む): 22930499520

約数和(自身を除く): 3020519269

約数列:

[1, 7, 137, 959, 4001, 5189, 28007, 36323, 548137, 710893, 3836959, 4976251, 20761189, 145328323, 2844282893, 19909980251]

約数ペア:

[(1, 19909980251), (7, 2844282893), (137, 145328323), (959, 20761189), (4001, 4976251), (5189, 3836959), (28007, 710893), (36323, 548137)]