20494724

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{17729}}^1$

素因数の和:17767

約数の個数: 18

約数和(自身を含む): 38101770

約数和(自身を除く): 17607046

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 17729, 35458, 70916, 301393, 602786, 1205572, 5123681, 10247362, 20494724]

約数ペア:

[(1, 20494724), (2, 10247362), (4, 5123681), (17, 1205572), (34, 602786), (68, 301393), (289, 70916), (578, 35458), (1156, 17729)]