28143477

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 43234560

約数和(自身を除く): 15091083

約数列:

[1, 3, 9, 27, 53, 71, 159, 213, 277, 477, 639, 831, 1431, 1917, 2493, 3763, 7479, 11289, 14681, 19667, 33867, 44043, 59001, 101601, 132129, 177003, 396387, 531009, 1042351, 3127053, 9381159, 28143477]

約数ペア:

[(1, 28143477), (3, 9381159), (9, 3127053), (27, 1042351), (53, 531009), (71, 396387), (159, 177003), (213, 132129), (277, 101601), (477, 59001), (639, 44043), (831, 33867), (1431, 19667), (1917, 14681), (2493, 11289), (3763, 7479)]