20171585

素因数分解:

$5^1\times 7^2\times {\mathrm{281}}^1\times {\mathrm{293}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 28354536

約数和(自身を除く): 8182951

約数列:

[1, 5, 7, 35, 49, 245, 281, 293, 1405, 1465, 1967, 2051, 9835, 10255, 13769, 14357, 68845, 71785, 82333, 411665, 576331, 2881655, 4034317, 20171585]

約数ペア:

[(1, 20171585), (5, 4034317), (7, 2881655), (35, 576331), (49, 411665), (245, 82333), (281, 71785), (293, 68845), (1405, 14357), (1465, 13769), (1967, 10255), (2051, 9835)]