21839398

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 41327280

約数和(自身を除く): 19487882

約数列:

[1, 2, 7, 14, 19, 37, 38, 49, 74, 98, 133, 259, 266, 317, 518, 634, 703, 931, 1406, 1813, 1862, 2219, 3626, 4438, 4921, 6023, 9842, 11729, 12046, 15533, 23458, 31066, 34447, 42161, 68894, 82103, 84322, 164206, 222851, 295127, 445702, 574721, 590254, 1149442, 1559957, 3119914, 10919699, 21839398]

約数ペア:

[(1, 21839398), (2, 10919699), (7, 3119914), (14, 1559957), (19, 1149442), (37, 590254), (38, 574721), (49, 445702), (74, 295127), (98, 222851), (133, 164206), (259, 84322), (266, 82103), (317, 68894), (518, 42161), (634, 34447), (703, 31066), (931, 23458), (1406, 15533), (1813, 12046), (1862, 11729), (2219, 9842), (3626, 6023), (4438, 4921)]