21325556

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{26263}}^1$

素因数の和:26303

約数の個数: 24

約数和(自身を含む): 44123520

約数和(自身を除く): 22797964

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 26263, 52526, 105052, 183841, 367682, 735364, 761627, 1523254, 3046508, 5331389, 10662778, 21325556]

約数ペア:

[(1, 21325556), (2, 10662778), (4, 5331389), (7, 3046508), (14, 1523254), (28, 761627), (29, 735364), (58, 367682), (116, 183841), (203, 105052), (406, 52526), (812, 26263)]