638872893

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{1723}}^1$

素因数の和:2206

約数の個数: 32

約数和(自身を含む): 979783680

約数和(自身を除く): 340910787

約数列:

[1, 3, 9, 27, 31, 93, 279, 443, 837, 1329, 1723, 3987, 5169, 11961, 13733, 15507, 41199, 46521, 53413, 123597, 160239, 370791, 480717, 763289, 1442151, 2289867, 6869601, 20608803, 23661959, 70985877, 212957631, 638872893]

約数ペア:

[(1, 638872893), (3, 212957631), (9, 70985877), (27, 23661959), (31, 20608803), (93, 6869601), (279, 2289867), (443, 1442151), (837, 763289), (1329, 480717), (1723, 370791), (3987, 160239), (5169, 123597), (11961, 53413), (13733, 46521), (15507, 41199)]