20864268

素因数分解:

$2^2\times 3^2\times {\mathrm{579563}}^1$

素因数の和:579573

約数の個数: 18

約数和(自身を含む): 52740324

約数和(自身を除く): 31876056

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 579563, 1159126, 1738689, 2318252, 3477378, 5216067, 6954756, 10432134, 20864268]

約数ペア:

[(1, 20864268), (2, 10432134), (3, 6954756), (4, 5216067), (6, 3477378), (9, 2318252), (12, 1738689), (18, 1159126), (36, 579563)]