28404705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{15913}}^1$

素因数の和:15945

約数の個数: 32

約数和(自身を含む): 54998784

約数和(自身を除く): 26594079

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 15913, 47739, 79565, 111391, 238695, 270521, 334173, 556955, 811563, 1352605, 1670865, 1893647, 4057815, 5680941, 9468235, 28404705]

約数ペア:

[(1, 28404705), (3, 9468235), (5, 5680941), (7, 4057815), (15, 1893647), (17, 1670865), (21, 1352605), (35, 811563), (51, 556955), (85, 334173), (105, 270521), (119, 238695), (255, 111391), (357, 79565), (595, 47739), (1785, 15913)]