20890441

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{421}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 24671808

約数和(自身を除く): 3781367

約数列:

[1, 11, 13, 143, 347, 421, 3817, 4511, 4631, 5473, 49621, 60203, 146087, 1606957, 1899131, 20890441]

約数ペア:

[(1, 20890441), (11, 1899131), (13, 1606957), (143, 146087), (347, 60203), (421, 49621), (3817, 5473), (4511, 4631)]