21147156

素因数分解:

$2^2\times 3^4\times {\mathrm{65269}}^1$

素因数の和:65285

約数の個数: 30

約数和(自身を含む): 55283690

約数和(自身を除く): 34136534

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65269, 130538, 195807, 261076, 391614, 587421, 783228, 1174842, 1762263, 2349684, 3524526, 5286789, 7049052, 10573578, 21147156]

約数ペア:

[(1, 21147156), (2, 10573578), (3, 7049052), (4, 5286789), (6, 3524526), (9, 2349684), (12, 1762263), (18, 1174842), (27, 783228), (36, 587421), (54, 391614), (81, 261076), (108, 195807), (162, 130538), (324, 65269)]