18928514

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 34128864

約数和(自身を除く): 15200350

約数列:

[1, 2, 11, 17, 22, 34, 43, 86, 107, 121, 187, 214, 242, 374, 473, 731, 946, 1177, 1462, 1819, 2057, 2354, 3638, 4114, 4601, 5203, 8041, 9202, 10406, 12947, 16082, 20009, 25894, 40018, 50611, 78217, 88451, 101222, 156434, 176902, 220099, 440198, 556721, 860387, 1113442, 1720774, 9464257, 18928514]

約数ペア:

[(1, 18928514), (2, 9464257), (11, 1720774), (17, 1113442), (22, 860387), (34, 556721), (43, 440198), (86, 220099), (107, 176902), (121, 156434), (187, 101222), (214, 88451), (242, 78217), (374, 50611), (473, 40018), (731, 25894), (946, 20009), (1177, 16082), (1462, 12947), (1819, 10406), (2057, 9202), (2354, 8041), (3638, 5203), (4114, 4601)]