20185291

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 23640064

約数和(自身を除く): 3454773

約数列:

[1, 7, 67, 193, 223, 469, 1351, 1561, 12931, 14941, 43039, 90517, 104587, 301273, 2883613, 20185291]

約数ペア:

[(1, 20185291), (7, 2883613), (67, 301273), (193, 104587), (223, 90517), (469, 43039), (1351, 14941), (1561, 12931)]