21078906

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{49481}}^1$

素因数の和:49557

約数の個数: 16

約数和(自身を含む): 42752448

約数和(自身を除く): 21673542

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 49481, 98962, 148443, 296886, 3513151, 7026302, 10539453, 21078906]

約数ペア:

[(1, 21078906), (2, 10539453), (3, 7026302), (6, 3513151), (71, 296886), (142, 148443), (213, 98962), (426, 49481)]