21077121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{6841}}^1$

素因数の和:6936

約数の個数: 16

約数和(自身を含む): 30652160

約数和(自身を除く): 9575039

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 6841, 20523, 88933, 266799, 540439, 1621317, 7025707, 21077121]

約数ペア:

[(1, 21077121), (3, 7025707), (13, 1621317), (39, 540439), (79, 266799), (237, 88933), (1027, 20523), (3081, 6841)]