21807180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121151}}^1$

素因数の和:121166

約数の個数: 36

約数和(自身を含む): 66148992

約数和(自身を除く): 44341812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121151, 242302, 363453, 484604, 605755, 726906, 1090359, 1211510, 1453812, 1817265, 2180718, 2423020, 3634530, 4361436, 5451795, 7269060, 10903590, 21807180]

約数ペア:

[(1, 21807180), (2, 10903590), (3, 7269060), (4, 5451795), (5, 4361436), (6, 3634530), (9, 2423020), (10, 2180718), (12, 1817265), (15, 1453812), (18, 1211510), (20, 1090359), (30, 726906), (36, 605755), (45, 484604), (60, 363453), (90, 242302), (180, 121151)]