20387906

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{3229}}^1$

素因数の和:3290

約数の個数: 32

約数和(自身を含む): 39070080

約数和(自身を除く): 18682174

約数列:

[1, 2, 7, 11, 14, 22, 41, 77, 82, 154, 287, 451, 574, 902, 3157, 3229, 6314, 6458, 22603, 35519, 45206, 71038, 132389, 248633, 264778, 497266, 926723, 1456279, 1853446, 2912558, 10193953, 20387906]

約数ペア:

[(1, 20387906), (2, 10193953), (7, 2912558), (11, 1853446), (14, 1456279), (22, 926723), (41, 497266), (77, 264778), (82, 248633), (154, 132389), (287, 71038), (451, 45206), (574, 35519), (902, 22603), (3157, 6458), (3229, 6314)]