668868777

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{503}}^1\times {\mathrm{2081}}^1$

素因数の和:2661

約数の個数: 24

約数和(自身を含む): 982171008

約数和(自身を除く): 313302231

約数列:

[1, 3, 9, 71, 213, 503, 639, 1509, 2081, 4527, 6243, 18729, 35713, 107139, 147751, 321417, 443253, 1046743, 1329759, 3140229, 9420687, 74318753, 222956259, 668868777]

約数ペア:

[(1, 668868777), (3, 222956259), (9, 74318753), (71, 9420687), (213, 3140229), (503, 1329759), (639, 1046743), (1509, 443253), (2081, 321417), (4527, 147751), (6243, 107139), (18729, 35713)]