20906545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4271}}^1$

素因数の和:4376

約数の個数: 16

約数和(自身を含む): 27682560

約数和(自身を除く): 6776015

約数列:

[1, 5, 11, 55, 89, 445, 979, 4271, 4895, 21355, 46981, 234905, 380119, 1900595, 4181309, 20906545]

約数ペア:

[(1, 20906545), (5, 4181309), (11, 1900595), (55, 380119), (89, 234905), (445, 46981), (979, 21355), (4271, 4895)]