20844579

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 33026560

約数和(自身を除く): 12181981

約数列:

[1, 3, 7, 21, 37, 111, 139, 193, 259, 417, 579, 777, 973, 1351, 2919, 4053, 5143, 7141, 15429, 21423, 26827, 36001, 49987, 80481, 108003, 149961, 187789, 563367, 992599, 2977797, 6948193, 20844579]

約数ペア:

[(1, 20844579), (3, 6948193), (7, 2977797), (21, 992599), (37, 563367), (111, 187789), (139, 149961), (193, 108003), (259, 80481), (417, 49987), (579, 36001), (777, 26827), (973, 21423), (1351, 15429), (2919, 7141), (4053, 5143)]