81431142

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{3881}}^1$

素因数の和:4168

約数の個数: 32

約数和(自身を含む): 176087520

約数和(自身を除く): 94656378

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 269, 538, 807, 1614, 3497, 3881, 6994, 7762, 10491, 11643, 20982, 23286, 50453, 100906, 151359, 302718, 1043989, 2087978, 3131967, 6263934, 13571857, 27143714, 40715571, 81431142]

約数ペア:

[(1, 81431142), (2, 40715571), (3, 27143714), (6, 13571857), (13, 6263934), (26, 3131967), (39, 2087978), (78, 1043989), (269, 302718), (538, 151359), (807, 100906), (1614, 50453), (3497, 23286), (3881, 20982), (6994, 11643), (7762, 10491)]