20459852

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2221}}^1$

素因数の和:2286

約数の個数: 36

約数和(自身を含む): 42555744

約数和(自身を除く): 22095892

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2221, 2303, 4442, 4606, 8884, 9212, 15547, 31094, 62188, 104387, 108829, 208774, 217658, 417548, 435316, 730709, 1461418, 2922836, 5114963, 10229926, 20459852]

約数ペア:

[(1, 20459852), (2, 10229926), (4, 5114963), (7, 2922836), (14, 1461418), (28, 730709), (47, 435316), (49, 417548), (94, 217658), (98, 208774), (188, 108829), (196, 104387), (329, 62188), (658, 31094), (1316, 15547), (2221, 9212), (2303, 8884), (4442, 4606)]