21730396

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 41559840

約数和(自身を除く): 19829444

約数列:

[1, 2, 4, 29, 37, 58, 61, 74, 83, 116, 122, 148, 166, 244, 332, 1073, 1769, 2146, 2257, 2407, 3071, 3538, 4292, 4514, 4814, 5063, 6142, 7076, 9028, 9628, 10126, 12284, 20252, 65453, 89059, 130906, 146827, 178118, 187331, 261812, 293654, 356236, 374662, 587308, 749324, 5432599, 10865198, 21730396]

約数ペア:

[(1, 21730396), (2, 10865198), (4, 5432599), (29, 749324), (37, 587308), (58, 374662), (61, 356236), (74, 293654), (83, 261812), (116, 187331), (122, 178118), (148, 146827), (166, 130906), (244, 89059), (332, 65453), (1073, 20252), (1769, 12284), (2146, 10126), (2257, 9628), (2407, 9028), (3071, 7076), (3538, 6142), (4292, 5063), (4514, 4814)]