20771604

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{593}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 39768876

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 593, 834, 973, 1186, 1251, 1668, 1779, 1946, 2372, 2502, 2919, 3558, 3892, 4151, 5004, 5337, 5838, 7116, 8302, 8757, 10674, 11676, 12453, 16604, 17514, 21348, 24906, 35028, 37359, 49812, 74718, 82427, 149436, 164854, 247281, 329708, 494562, 576989, 741843, 989124, 1153978, 1483686, 1730967, 2307956, 2967372, 3461934, 5192901, 6923868, 10385802, 20771604]

約数ペア:

[(1, 20771604), (2, 10385802), (3, 6923868), (4, 5192901), (6, 3461934), (7, 2967372), (9, 2307956), (12, 1730967), (14, 1483686), (18, 1153978), (21, 989124), (28, 741843), (36, 576989), (42, 494562), (63, 329708), (84, 247281), (126, 164854), (139, 149436), (252, 82427), (278, 74718), (417, 49812), (556, 37359), (593, 35028), (834, 24906), (973, 21348), (1186, 17514), (1251, 16604), (1668, 12453), (1779, 11676), (1946, 10674), (2372, 8757), (2502, 8302), (2919, 7116), (3558, 5838), (3892, 5337), (4151, 5004)]