1981905

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3571}}^1$

素因数の和:3616

約数の個数: 16

約数和(自身を含む): 3257664

約数和(自身を除く): 1275759

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 3571, 10713, 17855, 53565, 132127, 396381, 660635, 1981905]

約数ペア:

[(1, 1981905), (3, 660635), (5, 396381), (15, 132127), (37, 53565), (111, 17855), (185, 10713), (555, 3571)]