20247885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64279}}^1$

素因数の和:64297

約数の個数: 24

約数和(自身を含む): 40110720

約数和(自身を除く): 19862835

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64279, 192837, 321395, 449953, 578511, 964185, 1349859, 2249765, 2892555, 4049577, 6749295, 20247885]

約数ペア:

[(1, 20247885), (3, 6749295), (5, 4049577), (7, 2892555), (9, 2249765), (15, 1349859), (21, 964185), (35, 578511), (45, 449953), (63, 321395), (105, 192837), (315, 64279)]