20161794924

素因数分解:

$2^2\times 3^2\times {\mathrm{1987}}^1\times {\mathrm{281857}}^1$

素因数の和:283854

約数の個数: 36

約数和(自身を含む): 50990367064

約数和(自身を除く): 30828572140

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 1987, 3974, 5961, 7948, 11922, 17883, 23844, 35766, 71532, 281857, 563714, 845571, 1127428, 1691142, 2536713, 3382284, 5073426, 10146852, 560049859, 1120099718, 1680149577, 2240199436, 3360299154, 5040448731, 6720598308, 10080897462, 20161794924]

約数ペア:

[(1, 20161794924), (2, 10080897462), (3, 6720598308), (4, 5040448731), (6, 3360299154), (9, 2240199436), (12, 1680149577), (18, 1120099718), (36, 560049859), (1987, 10146852), (3974, 5073426), (5961, 3382284), (7948, 2536713), (11922, 1691142), (17883, 1127428), (23844, 845571), (35766, 563714), (71532, 281857)]