20656487169

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:831

約数の個数: 96

約数和(自身を含む): 32881904640

約数和(自身を除く): 12225417471

約数列:

[1, 3, 9, 29, 37, 47, 71, 87, 111, 141, 213, 261, 333, 423, 639, 641, 1073, 1363, 1739, 1923, 2059, 2627, 3219, 3337, 4089, 5217, 5769, 6177, 7881, 9657, 10011, 12267, 15651, 18531, 18589, 23643, 23717, 30033, 30127, 45511, 50431, 55767, 71151, 76183, 90381, 96773, 123469, 136533, 151293, 167301, 213453, 228549, 271143, 290319, 370407, 409599, 453879, 685647, 687793, 870957, 873683, 1111221, 1114699, 1319819, 1683907, 2063379, 2139017, 2621049, 3344097, 3580601, 3959457, 5051721, 6190137, 6417051, 7863147, 10032291, 10741803, 11878371, 15155163, 19251153, 32225409, 32326271, 48833303, 62031493, 79143629, 96978813, 146499909, 186094479, 237430887, 290936439, 439499727, 558283437, 712292661, 2295165241, 6885495723, 20656487169]

約数ペア:

[(1, 20656487169), (3, 6885495723), (9, 2295165241), (29, 712292661), (37, 558283437), (47, 439499727), (71, 290936439), (87, 237430887), (111, 186094479), (141, 146499909), (213, 96978813), (261, 79143629), (333, 62031493), (423, 48833303), (639, 32326271), (641, 32225409), (1073, 19251153), (1363, 15155163), (1739, 11878371), (1923, 10741803), (2059, 10032291), (2627, 7863147), (3219, 6417051), (3337, 6190137), (4089, 5051721), (5217, 3959457), (5769, 3580601), (6177, 3344097), (7881, 2621049), (9657, 2139017), (10011, 2063379), (12267, 1683907), (15651, 1319819), (18531, 1114699), (18589, 1111221), (23643, 873683), (23717, 870957), (30033, 687793), (30127, 685647), (45511, 453879), (50431, 409599), (55767, 370407), (71151, 290319), (76183, 271143), (90381, 228549), (96773, 213453), (123469, 167301), (136533, 151293)]