20177887779

素因数分解:

$3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{6791}}^1$

素因数の和:7085

約数の個数: 64

約数和(自身を含む): 34775040000

約数和(自身を除く): 14597152221

約数列:

[1, 3, 7, 9, 21, 27, 63, 79, 189, 199, 237, 553, 597, 711, 1393, 1659, 1791, 2133, 4179, 4977, 5373, 6791, 12537, 14931, 15721, 20373, 37611, 47163, 47537, 61119, 110047, 141489, 142611, 183357, 330141, 424467, 427833, 536489, 990423, 1283499, 1351409, 1609467, 2971269, 3755423, 4054227, 4828401, 9459863, 11266269, 12162681, 14485203, 28379589, 33798807, 36488043, 85138767, 101396421, 106761311, 255416301, 320283933, 747329177, 960851799, 2241987531, 2882555397, 6725962593, 20177887779]

約数ペア:

[(1, 20177887779), (3, 6725962593), (7, 2882555397), (9, 2241987531), (21, 960851799), (27, 747329177), (63, 320283933), (79, 255416301), (189, 106761311), (199, 101396421), (237, 85138767), (553, 36488043), (597, 33798807), (711, 28379589), (1393, 14485203), (1659, 12162681), (1791, 11266269), (2133, 9459863), (4179, 4828401), (4977, 4054227), (5373, 3755423), (6791, 2971269), (12537, 1609467), (14931, 1351409), (15721, 1283499), (20373, 990423), (37611, 536489), (47163, 427833), (47537, 424467), (61119, 330141), (110047, 183357), (141489, 142611)]