21267448

素因数分解:

$2^3\times {\mathrm{1181}}^1\times {\mathrm{2251}}^1$

素因数の和:3438

約数の個数: 16

約数和(自身を含む): 39927960

約数和(自身を除く): 18660512

約数列:

[1, 2, 4, 8, 1181, 2251, 2362, 4502, 4724, 9004, 9448, 18008, 2658431, 5316862, 10633724, 21267448]

約数ペア:

[(1, 21267448), (2, 10633724), (4, 5316862), (8, 2658431), (1181, 18008), (2251, 9448), (2362, 9004), (4502, 4724)]