20266533

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 35942400

約数和(自身を除く): 15675867

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 127, 149, 153, 357, 381, 447, 889, 1043, 1071, 1143, 1341, 2159, 2533, 2667, 3129, 6477, 7599, 8001, 9387, 15113, 17731, 18923, 19431, 22797, 45339, 53193, 56769, 132461, 136017, 159579, 170307, 321691, 397383, 965073, 1192149, 2251837, 2895219, 6755511, 20266533]

約数ペア:

[(1, 20266533), (3, 6755511), (7, 2895219), (9, 2251837), (17, 1192149), (21, 965073), (51, 397383), (63, 321691), (119, 170307), (127, 159579), (149, 136017), (153, 132461), (357, 56769), (381, 53193), (447, 45339), (889, 22797), (1043, 19431), (1071, 18923), (1143, 17731), (1341, 15113), (2159, 9387), (2533, 8001), (2667, 7599), (3129, 6477)]