28860039

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 47407360

約数和(自身を除く): 18547321

約数列:

[1, 3, 9, 13, 31, 39, 73, 93, 109, 117, 219, 279, 327, 403, 657, 949, 981, 1209, 1417, 2263, 2847, 3379, 3627, 4251, 6789, 7957, 8541, 10137, 12753, 20367, 23871, 29419, 30411, 43927, 71613, 88257, 103441, 131781, 246667, 264771, 310323, 395343, 740001, 930969, 2220003, 3206671, 9620013, 28860039]

約数ペア:

[(1, 28860039), (3, 9620013), (9, 3206671), (13, 2220003), (31, 930969), (39, 740001), (73, 395343), (93, 310323), (109, 264771), (117, 246667), (219, 131781), (279, 103441), (327, 88257), (403, 71613), (657, 43927), (949, 30411), (981, 29419), (1209, 23871), (1417, 20367), (2263, 12753), (2847, 10137), (3379, 8541), (3627, 7957), (4251, 6789)]