20705573

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1031}}^1$

素因数の和:1208

約数の個数: 16

約数和(自身を含む): 25098240

約数和(自身を除く): 4392667

約数列:

[1, 7, 19, 133, 151, 1031, 1057, 2869, 7217, 19589, 20083, 137123, 155681, 1089767, 2957939, 20705573]

約数ペア:

[(1, 20705573), (7, 2957939), (19, 1089767), (133, 155681), (151, 137123), (1031, 20083), (1057, 19589), (2869, 7217)]