16981638

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{39863}}^1$

素因数の和:39939

約数の個数: 16

約数和(自身を含む): 34442496

約数和(自身を除く): 17460858

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 39863, 79726, 119589, 239178, 2830273, 5660546, 8490819, 16981638]

約数ペア:

[(1, 16981638), (2, 8490819), (3, 5660546), (6, 2830273), (71, 239178), (142, 119589), (213, 79726), (426, 39863)]