81785178

素因数分解:

$2^1\times 3^2\times {\mathrm{1231}}^1\times {\mathrm{3691}}^1$

素因数の和:4930

約数の個数: 24

約数和(自身を含む): 177393216

約数和(自身を除く): 95608038

約数列:

[1, 2, 3, 6, 9, 18, 1231, 2462, 3691, 3693, 7382, 7386, 11073, 11079, 22146, 22158, 33219, 66438, 4543621, 9087242, 13630863, 27261726, 40892589, 81785178]

約数ペア:

[(1, 81785178), (2, 40892589), (3, 27261726), (6, 13630863), (9, 9087242), (18, 4543621), (1231, 66438), (2462, 33219), (3691, 22158), (3693, 22146), (7382, 11079), (7386, 11073)]