51325515

素因数分解:

$3^3\times 5^1\times {\mathrm{380189}}^1$

素因数の和:380203

約数の個数: 16

約数和(自身を含む): 91245600

約数和(自身を除く): 39920085

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 380189, 1140567, 1900945, 3421701, 5702835, 10265103, 17108505, 51325515]

約数ペア:

[(1, 51325515), (3, 17108505), (5, 10265103), (9, 5702835), (15, 3421701), (27, 1900945), (45, 1140567), (135, 380189)]