42940287

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 56

約数和(自身を含む): 72715104

約数和(自身を除く): 29774817

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 197, 207, 243, 299, 351, 591, 621, 729, 897, 1053, 1773, 1863, 2561, 2691, 3159, 4531, 5319, 5589, 7683, 8073, 9477, 13593, 15957, 16767, 23049, 24219, 40779, 47871, 58903, 69147, 72657, 122337, 143613, 176709, 207441, 217971, 367011, 530127, 622323, 1101033, 1590381, 1866969, 3303099, 4771143, 14313429, 42940287]

約数ペア:

[(1, 42940287), (3, 14313429), (9, 4771143), (13, 3303099), (23, 1866969), (27, 1590381), (39, 1101033), (69, 622323), (81, 530127), (117, 367011), (197, 217971), (207, 207441), (243, 176709), (299, 143613), (351, 122337), (591, 72657), (621, 69147), (729, 58903), (897, 47871), (1053, 40779), (1773, 24219), (1863, 23049), (2561, 16767), (2691, 15957), (3159, 13593), (4531, 9477), (5319, 8073), (5589, 7683)]