21661161

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2887}}^1$

素因数の和:2992

約数の個数: 16

約数和(自身を含む): 30081408

約数和(自身を除く): 8420247

約数列:

[1, 3, 41, 61, 123, 183, 2501, 2887, 7503, 8661, 118367, 176107, 355101, 528321, 7220387, 21661161]

約数ペア:

[(1, 21661161), (3, 7220387), (41, 528321), (61, 355101), (123, 176107), (183, 118367), (2501, 8661), (2887, 7503)]