20865579

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 33947136

約数和(自身を除く): 13081557

約数列:

[1, 3, 7, 17, 21, 51, 119, 211, 277, 357, 633, 831, 1477, 1939, 3587, 4431, 4709, 5817, 10761, 14127, 25109, 32963, 58447, 75327, 98889, 175341, 409129, 993599, 1227387, 2980797, 6955193, 20865579]

約数ペア:

[(1, 20865579), (3, 6955193), (7, 2980797), (17, 1227387), (21, 993599), (51, 409129), (119, 175341), (211, 98889), (277, 75327), (357, 58447), (633, 32963), (831, 25109), (1477, 14127), (1939, 10761), (3587, 5817), (4431, 4709)]