18816824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 41731200

約数和(自身を除く): 22914376

約数列:

[1, 2, 4, 8, 13, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 221, 232, 367, 377, 442, 493, 734, 754, 884, 986, 1468, 1508, 1768, 1972, 2936, 3016, 3944, 4771, 6239, 6409, 9542, 10643, 12478, 12818, 19084, 21286, 24956, 25636, 38168, 42572, 49912, 51272, 81107, 85144, 138359, 162214, 180931, 276718, 324428, 361862, 553436, 648856, 723724, 1106872, 1447448, 2352103, 4704206, 9408412, 18816824]

約数ペア:

[(1, 18816824), (2, 9408412), (4, 4704206), (8, 2352103), (13, 1447448), (17, 1106872), (26, 723724), (29, 648856), (34, 553436), (52, 361862), (58, 324428), (68, 276718), (104, 180931), (116, 162214), (136, 138359), (221, 85144), (232, 81107), (367, 51272), (377, 49912), (442, 42572), (493, 38168), (734, 25636), (754, 24956), (884, 21286), (986, 19084), (1468, 12818), (1508, 12478), (1768, 10643), (1972, 9542), (2936, 6409), (3016, 6239), (3944, 4771)]