18388713

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2711}}^1$

素因数の和:2757

約数の個数: 32

約数和(自身を含む): 31242240

約数和(自身を除く): 12853527

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 2711, 6783, 8133, 18977, 46087, 51509, 56931, 138261, 154527, 322609, 360563, 875653, 967827, 1081689, 2626959, 6129571, 18388713]

約数ペア:

[(1, 18388713), (3, 6129571), (7, 2626959), (17, 1081689), (19, 967827), (21, 875653), (51, 360563), (57, 322609), (119, 154527), (133, 138261), (323, 56931), (357, 51509), (399, 46087), (969, 18977), (2261, 8133), (2711, 6783)]