81564354

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{40823}}^1$

素因数の和:40871

約数の個数: 32

約数和(自身を含む): 186157440

約数和(自身を除く): 104593086

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 40823, 81646, 122469, 244938, 367407, 734814, 1102221, 1510451, 2204442, 3020902, 4531353, 9062706, 13594059, 27188118, 40782177, 81564354]

約数ペア:

[(1, 81564354), (2, 40782177), (3, 27188118), (6, 13594059), (9, 9062706), (18, 4531353), (27, 3020902), (37, 2204442), (54, 1510451), (74, 1102221), (111, 734814), (222, 367407), (333, 244938), (666, 122469), (999, 81646), (1998, 40823)]