20840526

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{857}}^1$

素因数の和:1065

約数の個数: 48

約数和(自身を含む): 51933024

約数和(自身を除く): 31092498

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 193, 386, 579, 857, 1158, 1351, 1714, 1737, 2571, 2702, 3474, 4053, 5142, 5999, 7713, 8106, 11998, 12159, 15426, 17997, 24318, 35994, 53991, 107982, 165401, 330802, 496203, 992406, 1157807, 1488609, 2315614, 2977218, 3473421, 6946842, 10420263, 20840526]

約数ペア:

[(1, 20840526), (2, 10420263), (3, 6946842), (6, 3473421), (7, 2977218), (9, 2315614), (14, 1488609), (18, 1157807), (21, 992406), (42, 496203), (63, 330802), (126, 165401), (193, 107982), (386, 53991), (579, 35994), (857, 24318), (1158, 17997), (1351, 15426), (1714, 12159), (1737, 11998), (2571, 8106), (2702, 7713), (3474, 5999), (4053, 5142)]