19561278

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{953}}^1$

素因数の和:1280

約数の個数: 32

約数和(自身を含む): 42861312

約数和(自身を除く): 23300034

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 311, 622, 933, 953, 1866, 1906, 2859, 3421, 5718, 6842, 10263, 10483, 20526, 20966, 31449, 62898, 296383, 592766, 889149, 1778298, 3260213, 6520426, 9780639, 19561278]

約数ペア:

[(1, 19561278), (2, 9780639), (3, 6520426), (6, 3260213), (11, 1778298), (22, 889149), (33, 592766), (66, 296383), (311, 62898), (622, 31449), (933, 20966), (953, 20526), (1866, 10483), (1906, 10263), (2859, 6842), (3421, 5718)]