20808

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^2$

素因数の和:46

約数の個数: 36

約数和(自身を含む): 59865

約数和(自身を除く): 39057

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 72, 102, 136, 153, 204, 289, 306, 408, 578, 612, 867, 1156, 1224, 1734, 2312, 2601, 3468, 5202, 6936, 10404, 20808]

約数ペア:

[(1, 20808), (2, 10404), (3, 6936), (4, 5202), (6, 3468), (8, 2601), (9, 2312), (12, 1734), (17, 1224), (18, 1156), (24, 867), (34, 612), (36, 578), (51, 408), (68, 306), (72, 289), (102, 204), (136, 153)]