28225071

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 51363840

約数和(自身を除く): 23138769

約数列:

[1, 3, 7, 9, 21, 23, 27, 43, 63, 69, 129, 151, 161, 189, 207, 301, 387, 453, 483, 621, 903, 989, 1057, 1161, 1359, 1449, 2709, 2967, 3171, 3473, 4077, 4347, 6493, 6923, 8127, 8901, 9513, 10419, 19479, 20769, 24311, 26703, 28539, 31257, 45451, 58437, 62307, 72933, 93771, 136353, 149339, 175311, 186921, 218799, 409059, 448017, 656397, 1045373, 1227177, 1344051, 3136119, 4032153, 9408357, 28225071]

約数ペア:

[(1, 28225071), (3, 9408357), (7, 4032153), (9, 3136119), (21, 1344051), (23, 1227177), (27, 1045373), (43, 656397), (63, 448017), (69, 409059), (129, 218799), (151, 186921), (161, 175311), (189, 149339), (207, 136353), (301, 93771), (387, 72933), (453, 62307), (483, 58437), (621, 45451), (903, 31257), (989, 28539), (1057, 26703), (1161, 24311), (1359, 20769), (1449, 19479), (2709, 10419), (2967, 9513), (3171, 8901), (3473, 8127), (4077, 6923), (4347, 6493)]