20581212

素因数分解:

$2^2\times 3^1\times {\mathrm{389}}^1\times {\mathrm{4409}}^1$

素因数の和:4805

約数の個数: 24

約数和(自身を含む): 48157200

約数和(自身を除く): 27575988

約数列:

[1, 2, 3, 4, 6, 12, 389, 778, 1167, 1556, 2334, 4409, 4668, 8818, 13227, 17636, 26454, 52908, 1715101, 3430202, 5145303, 6860404, 10290606, 20581212]

約数ペア:

[(1, 20581212), (2, 10290606), (3, 6860404), (4, 5145303), (6, 3430202), (12, 1715101), (389, 52908), (778, 26454), (1167, 17636), (1556, 13227), (2334, 8818), (4409, 4668)]