20799944

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^2\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 43876080

約数和(自身を除く): 23076136

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 107, 188, 214, 376, 428, 517, 856, 1034, 1177, 2068, 2209, 2354, 4136, 4418, 4708, 5029, 8836, 9416, 10058, 17672, 20116, 24299, 40232, 48598, 55319, 97196, 110638, 194392, 221276, 236363, 442552, 472726, 945452, 1890904, 2599993, 5199986, 10399972, 20799944]

約数ペア:

[(1, 20799944), (2, 10399972), (4, 5199986), (8, 2599993), (11, 1890904), (22, 945452), (44, 472726), (47, 442552), (88, 236363), (94, 221276), (107, 194392), (188, 110638), (214, 97196), (376, 55319), (428, 48598), (517, 40232), (856, 24299), (1034, 20116), (1177, 17672), (2068, 10058), (2209, 9416), (2354, 8836), (4136, 5029), (4418, 4708)]