21006039

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7841}}^1$

素因数の和:7910

約数の個数: 16

約数和(自身を含む): 30113280

約数和(自身を除く): 9107241

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7841, 23523, 148979, 368527, 446937, 1105581, 7002013, 21006039]

約数ペア:

[(1, 21006039), (3, 7002013), (19, 1105581), (47, 446937), (57, 368527), (141, 148979), (893, 23523), (2679, 7841)]