21171387

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1\times {\mathrm{349}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 28800800

約数和(自身を除く): 7629413

約数列:

[1, 3, 73, 219, 277, 349, 831, 1047, 20221, 25477, 60663, 76431, 96673, 290019, 7057129, 21171387]

約数ペア:

[(1, 21171387), (3, 7057129), (73, 290019), (219, 96673), (277, 76431), (349, 60663), (831, 25477), (1047, 20221)]