20423268

素因数分解:

$2^2\times 3^2\times {\mathrm{397}}^1\times {\mathrm{1429}}^1$

素因数の和:1836

約数の個数: 36

約数和(自身を含む): 51791740

約数和(自身を除く): 31368472

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 397, 794, 1191, 1429, 1588, 2382, 2858, 3573, 4287, 4764, 5716, 7146, 8574, 12861, 14292, 17148, 25722, 51444, 567313, 1134626, 1701939, 2269252, 3403878, 5105817, 6807756, 10211634, 20423268]

約数ペア:

[(1, 20423268), (2, 10211634), (3, 6807756), (4, 5105817), (6, 3403878), (9, 2269252), (12, 1701939), (18, 1134626), (36, 567313), (397, 51444), (794, 25722), (1191, 17148), (1429, 14292), (1588, 12861), (2382, 8574), (2858, 7146), (3573, 5716), (4287, 4764)]