20720498

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3559}}^1$

素因数の和:3673

約数の個数: 16

約数和(自身を含む): 32296320

約数和(自身を除く): 11575822

約数列:

[1, 2, 41, 71, 82, 142, 2911, 3559, 5822, 7118, 145919, 252689, 291838, 505378, 10360249, 20720498]

約数ペア:

[(1, 20720498), (2, 10360249), (41, 505378), (71, 291838), (82, 252689), (142, 145919), (2911, 7118), (3559, 5822)]