28521978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^2$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 61846848

約数和(自身を除く): 33324870

約数列:

[1, 2, 3, 6, 23, 41, 46, 69, 71, 82, 123, 138, 142, 213, 246, 426, 943, 1633, 1886, 2829, 2911, 3266, 4899, 5041, 5658, 5822, 8733, 9798, 10082, 15123, 17466, 30246, 66953, 115943, 133906, 200859, 206681, 231886, 347829, 401718, 413362, 620043, 695658, 1240086, 4753663, 9507326, 14260989, 28521978]

約数ペア:

[(1, 28521978), (2, 14260989), (3, 9507326), (6, 4753663), (23, 1240086), (41, 695658), (46, 620043), (69, 413362), (71, 401718), (82, 347829), (123, 231886), (138, 206681), (142, 200859), (213, 133906), (246, 115943), (426, 66953), (943, 30246), (1633, 17466), (1886, 15123), (2829, 10082), (2911, 9798), (3266, 8733), (4899, 5822), (5041, 5658)]