17900919

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7129}}^1$

素因数の和:7172

約数の個数: 20

約数和(自身を含む): 27607360

約数和(自身を除く): 9706441

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7129, 21387, 64161, 192483, 220999, 577449, 662997, 1988991, 5966973, 17900919]

約数ペア:

[(1, 17900919), (3, 5966973), (9, 1988991), (27, 662997), (31, 577449), (81, 220999), (93, 192483), (279, 64161), (837, 21387), (2511, 7129)]