20403878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31981}}^1$

素因数の和:32023

約数の個数: 16

約数和(自身を含む): 34540560

約数和(自身を除く): 14136682

約数列:

[1, 2, 11, 22, 29, 58, 319, 638, 31981, 63962, 351791, 703582, 927449, 1854898, 10201939, 20403878]

約数ペア:

[(1, 20403878), (2, 10201939), (11, 1854898), (22, 927449), (29, 703582), (58, 351791), (319, 63962), (638, 31981)]