20781768

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{123701}}^1$

素因数の和:123717

約数の個数: 32

約数和(自身を含む): 59376960

約数和(自身を除く): 38595192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 123701, 247402, 371103, 494804, 742206, 865907, 989608, 1484412, 1731814, 2597721, 2968824, 3463628, 5195442, 6927256, 10390884, 20781768]

約数ペア:

[(1, 20781768), (2, 10390884), (3, 6927256), (4, 5195442), (6, 3463628), (7, 2968824), (8, 2597721), (12, 1731814), (14, 1484412), (21, 989608), (24, 865907), (28, 742206), (42, 494804), (56, 371103), (84, 247402), (168, 123701)]