21685412

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 45760512

約数和(自身を除く): 24075100

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 151, 161, 223, 302, 322, 446, 604, 644, 892, 1057, 1561, 2114, 3122, 3473, 4228, 5129, 6244, 6946, 10258, 13892, 20516, 24311, 33673, 35903, 48622, 67346, 71806, 97244, 134692, 143612, 235711, 471422, 774479, 942844, 1548958, 3097916, 5421353, 10842706, 21685412]

約数ペア:

[(1, 21685412), (2, 10842706), (4, 5421353), (7, 3097916), (14, 1548958), (23, 942844), (28, 774479), (46, 471422), (92, 235711), (151, 143612), (161, 134692), (223, 97244), (302, 71806), (322, 67346), (446, 48622), (604, 35903), (644, 33673), (892, 24311), (1057, 20516), (1561, 13892), (2114, 10258), (3122, 6946), (3473, 6244), (4228, 5129)]