81384645

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{146639}}^1$

素因数の和:146684

約数の個数: 16

約数和(自身を含む): 133735680

約数和(自身を除く): 52351035

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 146639, 439917, 733195, 2199585, 5425643, 16276929, 27128215, 81384645]

約数ペア:

[(1, 81384645), (3, 27128215), (5, 16276929), (15, 5425643), (37, 2199585), (111, 733195), (185, 439917), (555, 146639)]