21006987131

素因数分解:

${\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{36229}}^1$

素因数の和:36375

約数の個数: 24

約数和(自身を含む): 23550079680

約数和(自身を除く): 2543092549

約数列:

[1, 13, 47, 73, 169, 611, 949, 3431, 7943, 12337, 36229, 44603, 470977, 579839, 1702763, 2644717, 6122701, 22135919, 34381321, 124301699, 287766947, 446957173, 1615922087, 21006987131]

約数ペア:

[(1, 21006987131), (13, 1615922087), (47, 446957173), (73, 287766947), (169, 124301699), (611, 34381321), (949, 22135919), (3431, 6122701), (7943, 2644717), (12337, 1702763), (36229, 579839), (44603, 470977)]