21411922

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^2$

素因数の和:203

約数の個数: 36

約数和(自身を含む): 38804346

約数和(自身を除く): 17392424

約数列:

[1, 2, 7, 14, 41, 49, 73, 82, 98, 146, 287, 511, 574, 1022, 2009, 2993, 3577, 4018, 5329, 5986, 7154, 10658, 20951, 37303, 41902, 74606, 146657, 218489, 261121, 293314, 436978, 522242, 1529423, 3058846, 10705961, 21411922]

約数ペア:

[(1, 21411922), (2, 10705961), (7, 3058846), (14, 1529423), (41, 522242), (49, 436978), (73, 293314), (82, 261121), (98, 218489), (146, 146657), (287, 74606), (511, 41902), (574, 37303), (1022, 20951), (2009, 10658), (2993, 7154), (3577, 5986), (4018, 5329)]