20421058

素因数分解:

$2^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{2789}}^1$

素因数の和:3321

約数の個数: 16

約数和(自身を含む): 35087040

約数和(自身を除く): 14665982

約数列:

[1, 2, 7, 14, 523, 1046, 2789, 3661, 5578, 7322, 19523, 39046, 1458647, 2917294, 10210529, 20421058]

約数ペア:

[(1, 20421058), (2, 10210529), (7, 2917294), (14, 1458647), (523, 39046), (1046, 19523), (2789, 7322), (3661, 5578)]