12758391

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{5081}}^1$

素因数の和:5124

約数の個数: 20

約数和(自身を含む): 19677504

約数和(自身を除く): 6919113

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 5081, 15243, 45729, 137187, 157511, 411561, 472533, 1417599, 4252797, 12758391]

約数ペア:

[(1, 12758391), (3, 4252797), (9, 1417599), (27, 472533), (31, 411561), (81, 157511), (93, 137187), (279, 45729), (837, 15243), (2511, 5081)]