18639324

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^3\times {\mathrm{389}}^1$

素因数の和:432

約数の個数: 72

約数和(自身を含む): 51957360

約数和(自身を除く): 33318036

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 389, 396, 484, 726, 778, 1089, 1167, 1331, 1452, 1556, 2178, 2334, 2662, 3501, 3993, 4279, 4356, 4668, 5324, 7002, 7986, 8558, 11979, 12837, 14004, 15972, 17116, 23958, 25674, 38511, 47069, 47916, 51348, 77022, 94138, 141207, 154044, 188276, 282414, 423621, 517759, 564828, 847242, 1035518, 1553277, 1694484, 2071036, 3106554, 4659831, 6213108, 9319662, 18639324]

約数ペア:

[(1, 18639324), (2, 9319662), (3, 6213108), (4, 4659831), (6, 3106554), (9, 2071036), (11, 1694484), (12, 1553277), (18, 1035518), (22, 847242), (33, 564828), (36, 517759), (44, 423621), (66, 282414), (99, 188276), (121, 154044), (132, 141207), (198, 94138), (242, 77022), (363, 51348), (389, 47916), (396, 47069), (484, 38511), (726, 25674), (778, 23958), (1089, 17116), (1167, 15972), (1331, 14004), (1452, 12837), (1556, 11979), (2178, 8558), (2334, 7986), (2662, 7002), (3501, 5324), (3993, 4668), (4279, 4356)]