21147218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{1361}}^1$

素因数の和:1837

約数の個数: 16

約数和(自身を含む): 33684984

約数和(自身を除く): 12537766

約数列:

[1, 2, 17, 34, 457, 914, 1361, 2722, 7769, 15538, 23137, 46274, 621977, 1243954, 10573609, 21147218]

約数ペア:

[(1, 21147218), (2, 10573609), (17, 1243954), (34, 621977), (457, 46274), (914, 23137), (1361, 15538), (2722, 7769)]