19821796

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{6779}}^1$

素因数の和:6843

約数の個数: 24

約数和(自身を含む): 37588320

約数和(自身を除く): 17766524

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 6779, 13558, 27116, 115243, 230486, 291497, 460972, 582994, 1165988, 4955449, 9910898, 19821796]

約数ペア:

[(1, 19821796), (2, 9910898), (4, 4955449), (17, 1165988), (34, 582994), (43, 460972), (68, 291497), (86, 230486), (172, 115243), (731, 27116), (1462, 13558), (2924, 6779)]