20395881

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{2081}}^1$

素因数の和:2115

約数の個数: 30

約数和(自身を含む): 33505626

約数和(自身を除く): 13109745

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 297, 363, 891, 1089, 2081, 3267, 6243, 9801, 18729, 22891, 56187, 68673, 168561, 206019, 251801, 618057, 755403, 1854171, 2266209, 6798627, 20395881]

約数ペア:

[(1, 20395881), (3, 6798627), (9, 2266209), (11, 1854171), (27, 755403), (33, 618057), (81, 251801), (99, 206019), (121, 168561), (297, 68673), (363, 56187), (891, 22891), (1089, 18729), (2081, 9801), (3267, 6243)]