81236508

素因数分解:

$2^2\times 3^1\times {\mathrm{1987}}^1\times {\mathrm{3407}}^1$

素因数の和:5401

約数の個数: 24

約数和(自身を含む): 189702912

約数和(自身を除く): 108466404

約数列:

[1, 2, 3, 4, 6, 12, 1987, 3407, 3974, 5961, 6814, 7948, 10221, 11922, 13628, 20442, 23844, 40884, 6769709, 13539418, 20309127, 27078836, 40618254, 81236508]

約数ペア:

[(1, 81236508), (2, 40618254), (3, 27078836), (4, 20309127), (6, 13539418), (12, 6769709), (1987, 40884), (3407, 23844), (3974, 20442), (5961, 13628), (6814, 11922), (7948, 10221)]