20000211

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 35546112

約数和(自身を除く): 15545901

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 121, 187, 231, 357, 363, 463, 561, 847, 1309, 1389, 2057, 2541, 3241, 3927, 5093, 6171, 7871, 9723, 14399, 15279, 23613, 35651, 43197, 55097, 56023, 86581, 106953, 165291, 168069, 259743, 392161, 606067, 952391, 1176483, 1818201, 2857173, 6666737, 20000211]

約数ペア:

[(1, 20000211), (3, 6666737), (7, 2857173), (11, 1818201), (17, 1176483), (21, 952391), (33, 606067), (51, 392161), (77, 259743), (119, 168069), (121, 165291), (187, 106953), (231, 86581), (357, 56023), (363, 55097), (463, 43197), (561, 35651), (847, 23613), (1309, 15279), (1389, 14399), (2057, 9723), (2541, 7871), (3241, 6171), (3927, 5093)]