13720917

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4327}}^1$

素因数の和:4488

約数の個数: 16

約数和(自身を含む): 21051392

約数和(自身を除く): 7330475

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 4327, 12981, 30289, 90867, 653377, 1960131, 4573639, 13720917]

約数ペア:

[(1, 13720917), (3, 4573639), (7, 1960131), (21, 653377), (151, 90867), (453, 30289), (1057, 12981), (3171, 4327)]