20507557

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{751}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 24256512

約数和(自身を除く): 3748955

約数列:

[1, 7, 47, 83, 329, 581, 751, 3901, 5257, 27307, 35297, 62333, 247079, 436331, 2929651, 20507557]

約数ペア:

[(1, 20507557), (7, 2929651), (47, 436331), (83, 247079), (329, 62333), (581, 35297), (751, 27307), (3901, 5257)]