20348545

素因数分解:

$5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{907}}^1$

素因数の和:1560

約数の個数: 16

約数和(自身を含む): 27980928

約数和(自身を除く): 7632383

約数列:

[1, 5, 7, 35, 641, 907, 3205, 4487, 4535, 6349, 22435, 31745, 581387, 2906935, 4069709, 20348545]

約数ペア:

[(1, 20348545), (5, 4069709), (7, 2906935), (35, 581387), (641, 31745), (907, 22435), (3205, 6349), (4487, 4535)]