20179548

素因数分解:

$2^2\times 3^2\times {\mathrm{560543}}^1$

素因数の和:560553

約数の個数: 18

約数和(自身を含む): 51009504

約数和(自身を除く): 30829956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 560543, 1121086, 1681629, 2242172, 3363258, 5044887, 6726516, 10089774, 20179548]

約数ペア:

[(1, 20179548), (2, 10089774), (3, 6726516), (4, 5044887), (6, 3363258), (9, 2242172), (12, 1681629), (18, 1121086), (36, 560543)]