680481

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:314

約数の個数: 20

約数和(自身を含む): 1053184

約数和(自身を除く): 372703

約数列:

[1, 3, 9, 27, 31, 81, 93, 271, 279, 813, 837, 2439, 2511, 7317, 8401, 21951, 25203, 75609, 226827, 680481]

約数ペア:

[(1, 680481), (3, 226827), (9, 75609), (27, 25203), (31, 21951), (81, 8401), (93, 7317), (271, 2511), (279, 2439), (813, 837)]