21229143

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{12659}}^1$

素因数の和:12718

約数の個数: 16

約数和(自身を含む): 31194240

約数和(自身を除く): 9965097

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 12659, 37977, 164567, 493701, 544337, 1633011, 7076381, 21229143]

約数ペア:

[(1, 21229143), (3, 7076381), (13, 1633011), (39, 544337), (43, 493701), (129, 164567), (559, 37977), (1677, 12659)]