71967771

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{28661}}^1$

素因数の和:28704

約数の個数: 20

約数和(自身を含む): 110979264

約数和(自身を除く): 39011493

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 28661, 85983, 257949, 773847, 888491, 2321541, 2665473, 7996419, 23989257, 71967771]

約数ペア:

[(1, 71967771), (3, 23989257), (9, 7996419), (27, 2665473), (31, 2321541), (81, 888491), (93, 773847), (279, 257949), (837, 85983), (2511, 28661)]