16910686

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20981}}^1$

素因数の和:21027

約数の個数: 16

約数和(自身を含む): 28199808

約数和(自身を除く): 11289122

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 20981, 41962, 272753, 545506, 650411, 1300822, 8455343, 16910686]

約数ペア:

[(1, 16910686), (2, 8455343), (13, 1300822), (26, 650411), (31, 545506), (62, 272753), (403, 41962), (806, 20981)]