20518683

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 29767680

約数和(自身を除く): 9248997

約数列:

[1, 3, 31, 37, 67, 89, 93, 111, 201, 267, 1147, 2077, 2479, 2759, 3293, 3441, 5963, 6231, 7437, 8277, 9879, 17889, 76849, 102083, 184853, 220631, 230547, 306249, 554559, 661893, 6839561, 20518683]

約数ペア:

[(1, 20518683), (3, 6839561), (31, 661893), (37, 554559), (67, 306249), (89, 230547), (93, 220631), (111, 184853), (201, 102083), (267, 76849), (1147, 17889), (2077, 9879), (2479, 8277), (2759, 7437), (3293, 6231), (3441, 5963)]