27405405

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4721}}^1$

素因数の和:4778

約数の個数: 32

約数和(自身を含む): 49864320

約数和(自身を除く): 22458915

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 4721, 5805, 14163, 23605, 42489, 70815, 127467, 203003, 212445, 609009, 637335, 1015015, 1827027, 3045045, 5481081, 9135135, 27405405]

約数ペア:

[(1, 27405405), (3, 9135135), (5, 5481081), (9, 3045045), (15, 1827027), (27, 1015015), (43, 637335), (45, 609009), (129, 212445), (135, 203003), (215, 127467), (387, 70815), (645, 42489), (1161, 23605), (1935, 14163), (4721, 5805)]