18734355

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1901}}^1$

素因数の和:1988

約数の個数: 32

約数和(自身を含む): 33779520

約数和(自身を除く): 15045165

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1901, 1971, 3285, 5703, 9505, 9855, 17109, 28515, 51327, 85545, 138773, 256635, 416319, 693865, 1248957, 2081595, 3746871, 6244785, 18734355]

約数ペア:

[(1, 18734355), (3, 6244785), (5, 3746871), (9, 2081595), (15, 1248957), (27, 693865), (45, 416319), (73, 256635), (135, 138773), (219, 85545), (365, 51327), (657, 28515), (1095, 17109), (1901, 9855), (1971, 9505), (3285, 5703)]