81658874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{20507}}^1$

素因数の和:20701

約数の個数: 16

約数和(自身を含む): 134368416

約数和(自身を除く): 52709542

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 20507, 41014, 225577, 451154, 3711767, 7423534, 40829437, 81658874]

約数ペア:

[(1, 81658874), (2, 40829437), (11, 7423534), (22, 3711767), (181, 451154), (362, 225577), (1991, 41014), (3982, 20507)]