20785044

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{709}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 55664000

約数和(自身を除く): 34878956

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 349, 698, 709, 1047, 1396, 1418, 2094, 2127, 2443, 2836, 4188, 4254, 4886, 4963, 7329, 8508, 9772, 9926, 14658, 14889, 19852, 29316, 29778, 59556, 247441, 494882, 742323, 989764, 1484646, 1732087, 2969292, 3464174, 5196261, 6928348, 10392522, 20785044]

約数ペア:

[(1, 20785044), (2, 10392522), (3, 6928348), (4, 5196261), (6, 3464174), (7, 2969292), (12, 1732087), (14, 1484646), (21, 989764), (28, 742323), (42, 494882), (84, 247441), (349, 59556), (698, 29778), (709, 29316), (1047, 19852), (1396, 14889), (1418, 14658), (2094, 9926), (2127, 9772), (2443, 8508), (2836, 7329), (4188, 4963), (4254, 4886)]