31665985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{28657}}^1$

素因数の和:28692

約数の個数: 16

約数和(自身を含む): 43330896

約数和(自身を除く): 11664911

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 28657, 143285, 372541, 487169, 1862705, 2435845, 6333197, 31665985]

約数ペア:

[(1, 31665985), (5, 6333197), (13, 2435845), (17, 1862705), (65, 487169), (85, 372541), (221, 143285), (1105, 28657)]