211551471

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{7817}}^1$

素因数の和:7951

約数の個数: 24

約数和(自身を含む): 318724224

約数和(自身を除く): 107172753

約数列:

[1, 3, 9, 31, 93, 97, 279, 291, 873, 3007, 7817, 9021, 23451, 27063, 70353, 242327, 726981, 758249, 2180943, 2274747, 6824241, 23505719, 70517157, 211551471]

約数ペア:

[(1, 211551471), (3, 70517157), (9, 23505719), (31, 6824241), (93, 2274747), (97, 2180943), (279, 758249), (291, 726981), (873, 242327), (3007, 70353), (7817, 27063), (9021, 23451)]