20865796

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9433}}^1$

素因数の和:9523

約数の個数: 24

約数和(自身を含む): 42264320

約数和(自身を除く): 21398524

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9433, 18866, 37732, 66031, 132062, 264124, 745207, 1490414, 2980828, 5216449, 10432898, 20865796]

約数ペア:

[(1, 20865796), (2, 10432898), (4, 5216449), (7, 2980828), (14, 1490414), (28, 745207), (79, 264124), (158, 132062), (316, 66031), (553, 37732), (1106, 18866), (2212, 9433)]