20321103

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 32749920

約数和(自身を除く): 12428817

約数列:

[1, 3, 11, 17, 33, 37, 51, 89, 111, 121, 187, 267, 363, 407, 561, 629, 979, 1221, 1513, 1887, 2057, 2937, 3293, 4477, 4539, 6171, 6919, 9879, 10769, 13431, 16643, 20757, 32307, 36223, 49929, 55981, 76109, 108669, 167943, 183073, 228327, 398453, 549219, 615791, 1195359, 1847373, 6773701, 20321103]

約数ペア:

[(1, 20321103), (3, 6773701), (11, 1847373), (17, 1195359), (33, 615791), (37, 549219), (51, 398453), (89, 228327), (111, 183073), (121, 167943), (187, 108669), (267, 76109), (363, 55981), (407, 49929), (561, 36223), (629, 32307), (979, 20757), (1221, 16643), (1513, 13431), (1887, 10769), (2057, 9879), (2937, 6919), (3293, 6171), (4477, 4539)]