21219585

素因数分解:

$3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{5107}}^1$

素因数の和:5392

約数の個数: 16

約数和(自身を含む): 34080576

約数和(自身を除く): 12860991

約数列:

[1, 3, 5, 15, 277, 831, 1385, 4155, 5107, 15321, 25535, 76605, 1414639, 4243917, 7073195, 21219585]

約数ペア:

[(1, 21219585), (3, 7073195), (5, 4243917), (15, 1414639), (277, 76605), (831, 25535), (1385, 15321), (4155, 5107)]