81663858

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^2\times {\mathrm{4721}}^1$

素因数の和:4791

約数の個数: 36

約数和(自身を含む): 182868894

約数和(自身を除く): 101205036

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 961, 1922, 2883, 4721, 5766, 8649, 9442, 14163, 17298, 28326, 42489, 84978, 146351, 292702, 439053, 878106, 1317159, 2634318, 4536881, 9073762, 13610643, 27221286, 40831929, 81663858]

約数ペア:

[(1, 81663858), (2, 40831929), (3, 27221286), (6, 13610643), (9, 9073762), (18, 4536881), (31, 2634318), (62, 1317159), (93, 878106), (186, 439053), (279, 292702), (558, 146351), (961, 84978), (1922, 42489), (2883, 28326), (4721, 17298), (5766, 14163), (8649, 9442)]