18546489

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:153

約数の個数: 56

約数和(自身を含む): 31828160

約数和(自身を除く): 13281671

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 103, 117, 171, 243, 247, 309, 351, 513, 729, 741, 927, 1053, 1339, 1539, 1957, 2223, 2781, 3159, 4017, 4617, 5871, 6669, 8343, 9477, 12051, 13851, 17613, 20007, 25029, 25441, 36153, 52839, 60021, 75087, 76323, 108459, 158517, 180063, 228969, 325377, 475551, 686907, 976131, 1426653, 2060721, 6182163, 18546489]

約数ペア:

[(1, 18546489), (3, 6182163), (9, 2060721), (13, 1426653), (19, 976131), (27, 686907), (39, 475551), (57, 325377), (81, 228969), (103, 180063), (117, 158517), (171, 108459), (243, 76323), (247, 75087), (309, 60021), (351, 52839), (513, 36153), (729, 25441), (741, 25029), (927, 20007), (1053, 17613), (1339, 13851), (1539, 12051), (1957, 9477), (2223, 8343), (2781, 6669), (3159, 5871), (4017, 4617)]