20920578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{12149}}^1$

素因数の和:12202

約数の個数: 32

約数和(自身を含む): 48988800

約数和(自身を除く): 28068222

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 246, 287, 574, 861, 1722, 12149, 24298, 36447, 72894, 85043, 170086, 255129, 498109, 510258, 996218, 1494327, 2988654, 3486763, 6973526, 10460289, 20920578]

約数ペア:

[(1, 20920578), (2, 10460289), (3, 6973526), (6, 3486763), (7, 2988654), (14, 1494327), (21, 996218), (41, 510258), (42, 498109), (82, 255129), (123, 170086), (246, 85043), (287, 72894), (574, 36447), (861, 24298), (1722, 12149)]