20818172

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{911}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 17102788

約数列:

[1, 2, 4, 29, 58, 116, 197, 394, 788, 911, 1822, 3644, 5713, 11426, 22852, 26419, 52838, 105676, 179467, 358934, 717868, 5204543, 10409086, 20818172]

約数ペア:

[(1, 20818172), (2, 10409086), (4, 5204543), (29, 717868), (58, 358934), (116, 179467), (197, 105676), (394, 52838), (788, 26419), (911, 22852), (1822, 11426), (3644, 5713)]