18933291

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 14935509

約数列:

[1, 3, 9, 13, 17, 19, 27, 39, 51, 57, 117, 153, 167, 171, 221, 247, 323, 351, 459, 501, 513, 663, 741, 969, 1503, 1989, 2171, 2223, 2839, 2907, 3173, 4199, 4509, 5967, 6513, 6669, 8517, 8721, 9519, 12597, 19539, 25551, 28557, 36907, 37791, 41249, 53941, 58617, 76653, 85671, 110721, 113373, 123747, 161823, 332163, 371241, 485469, 701233, 996489, 1113723, 1456407, 2103699, 6311097, 18933291]

約数ペア:

[(1, 18933291), (3, 6311097), (9, 2103699), (13, 1456407), (17, 1113723), (19, 996489), (27, 701233), (39, 485469), (51, 371241), (57, 332163), (117, 161823), (153, 123747), (167, 113373), (171, 110721), (221, 85671), (247, 76653), (323, 58617), (351, 53941), (459, 41249), (501, 37791), (513, 36907), (663, 28557), (741, 25551), (969, 19539), (1503, 12597), (1989, 9519), (2171, 8721), (2223, 8517), (2839, 6669), (2907, 6513), (3173, 5967), (4199, 4509)]