20619389

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{677}}^1$

素因数の和:932

約数の個数: 16

約数和(自身を含む): 24950400

約数和(自身を除く): 4331011

約数列:

[1, 7, 19, 133, 229, 677, 1603, 4351, 4739, 12863, 30457, 90041, 155033, 1085231, 2945627, 20619389]

約数ペア:

[(1, 20619389), (7, 2945627), (19, 1085231), (133, 155033), (229, 90041), (677, 30457), (1603, 12863), (4351, 4739)]