20421086

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{76771}}^1$

素因数の和:76799

約数の個数: 16

約数和(自身を含む): 36850560

約数和(自身を除く): 16429474

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 76771, 153542, 537397, 1074794, 1458649, 2917298, 10210543, 20421086]

約数ペア:

[(1, 20421086), (2, 10210543), (7, 2917298), (14, 1458649), (19, 1074794), (38, 537397), (133, 153542), (266, 76771)]