20567385

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2087}}^1$

素因数の和:2174

約数の個数: 32

約数和(自身を含む): 37082880

約数和(自身を除く): 16515495

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 2087, 3285, 6261, 9855, 10435, 18783, 31305, 56349, 93915, 152351, 281745, 457053, 761755, 1371159, 2285265, 4113477, 6855795, 20567385]

約数ペア:

[(1, 20567385), (3, 6855795), (5, 4113477), (9, 2285265), (15, 1371159), (27, 761755), (45, 457053), (73, 281745), (135, 152351), (219, 93915), (365, 56349), (657, 31305), (1095, 18783), (1971, 10435), (2087, 9855), (3285, 6261)]