21918138

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{1061}}^1$

素因数の和:1390

約数の個数: 32

約数和(自身を含む): 48019392

約数和(自身を除く): 26101254

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 313, 626, 939, 1061, 1878, 2122, 3183, 3443, 6366, 6886, 10329, 11671, 20658, 23342, 35013, 70026, 332093, 664186, 996279, 1992558, 3653023, 7306046, 10959069, 21918138]

約数ペア:

[(1, 21918138), (2, 10959069), (3, 7306046), (6, 3653023), (11, 1992558), (22, 996279), (33, 664186), (66, 332093), (313, 70026), (626, 35013), (939, 23342), (1061, 20658), (1878, 11671), (2122, 10329), (3183, 6886), (3443, 6366)]