28360233

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 21717207

約数列:

[1, 3, 9, 11, 17, 27, 33, 41, 51, 99, 123, 137, 153, 187, 297, 369, 411, 451, 459, 561, 697, 1107, 1233, 1353, 1507, 1683, 2091, 2329, 3699, 4059, 4521, 5049, 5617, 6273, 6987, 7667, 12177, 13563, 16851, 18819, 20961, 23001, 25619, 40689, 50553, 61787, 62883, 69003, 76857, 95489, 151659, 185361, 207009, 230571, 286467, 556083, 691713, 859401, 1050379, 1668249, 2578203, 3151137, 9453411, 28360233]

約数ペア:

[(1, 28360233), (3, 9453411), (9, 3151137), (11, 2578203), (17, 1668249), (27, 1050379), (33, 859401), (41, 691713), (51, 556083), (99, 286467), (123, 230571), (137, 207009), (153, 185361), (187, 151659), (297, 95489), (369, 76857), (411, 69003), (451, 62883), (459, 61787), (561, 50553), (697, 40689), (1107, 25619), (1233, 23001), (1353, 20961), (1507, 18819), (1683, 16851), (2091, 13563), (2329, 12177), (3699, 7667), (4059, 6987), (4521, 6273), (5049, 5617)]