21283624

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61871}}^1$

素因数の和:61920

約数の個数: 16

約数和(自身を含む): 40835520

約数和(自身を除く): 19551896

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61871, 123742, 247484, 494968, 2660453, 5320906, 10641812, 21283624]

約数ペア:

[(1, 21283624), (2, 10641812), (4, 5320906), (8, 2660453), (43, 494968), (86, 247484), (172, 123742), (344, 61871)]