21639662

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{4993}}^1$

素因数の和:5203

約数の個数: 16

約数和(自身を含む): 35597232

約数和(自身を除く): 13957570

約数列:

[1, 2, 11, 22, 197, 394, 2167, 4334, 4993, 9986, 54923, 109846, 983621, 1967242, 10819831, 21639662]

約数ペア:

[(1, 21639662), (2, 10819831), (11, 1967242), (22, 983621), (197, 109846), (394, 54923), (2167, 9986), (4334, 4993)]