664041

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 1025024

約数和(自身を除く): 360983

約数列:

[1, 3, 7, 21, 103, 307, 309, 721, 921, 2149, 2163, 6447, 31621, 94863, 221347, 664041]

約数ペア:

[(1, 664041), (3, 221347), (7, 94863), (21, 31621), (103, 6447), (307, 2163), (309, 2149), (721, 921)]