19040318

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 34186320

約数和(自身を除く): 15146002

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 101, 121, 202, 209, 242, 418, 451, 779, 902, 1111, 1558, 1919, 2222, 2299, 3838, 4141, 4598, 4961, 8282, 8569, 9922, 12221, 17138, 21109, 24442, 42218, 45551, 78679, 91102, 94259, 157358, 188518, 232199, 464398, 501061, 865469, 1002122, 1730938, 9520159, 19040318]

約数ペア:

[(1, 19040318), (2, 9520159), (11, 1730938), (19, 1002122), (22, 865469), (38, 501061), (41, 464398), (82, 232199), (101, 188518), (121, 157358), (202, 94259), (209, 91102), (242, 78679), (418, 45551), (451, 42218), (779, 24442), (902, 21109), (1111, 17138), (1558, 12221), (1919, 9922), (2222, 8569), (2299, 8282), (3838, 4961), (4141, 4598)]