18389727

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:340

約数の個数: 32

約数和(自身を含む): 28508160

約数和(自身を除く): 10118433

約数列:

[1, 3, 9, 27, 31, 93, 127, 173, 279, 381, 519, 837, 1143, 1557, 3429, 3937, 4671, 5363, 11811, 16089, 21971, 35433, 48267, 65913, 106299, 144801, 197739, 593217, 681101, 2043303, 6129909, 18389727]

約数ペア:

[(1, 18389727), (3, 6129909), (9, 2043303), (27, 681101), (31, 593217), (93, 197739), (127, 144801), (173, 106299), (279, 65913), (381, 48267), (519, 35433), (837, 21971), (1143, 16089), (1557, 11811), (3429, 5363), (3937, 4671)]