18765135

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1433}}^1$

素因数の和:1544

約数の個数: 32

約数和(自身を含む): 33727680

約数和(自身を除く): 14962545

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 135, 291, 485, 873, 1433, 1455, 2619, 4299, 4365, 7165, 12897, 13095, 21495, 38691, 64485, 139001, 193455, 417003, 695005, 1251009, 2085015, 3753027, 6255045, 18765135]

約数ペア:

[(1, 18765135), (3, 6255045), (5, 3753027), (9, 2085015), (15, 1251009), (27, 695005), (45, 417003), (97, 193455), (135, 139001), (291, 64485), (485, 38691), (873, 21495), (1433, 13095), (1455, 12897), (2619, 7165), (4299, 4365)]