19431351

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 29113344

約数和(自身を除く): 9681993

約数列:

[1, 3, 9, 47, 71, 141, 213, 423, 639, 647, 1941, 3337, 5823, 10011, 30033, 30409, 45937, 91227, 137811, 273681, 413433, 2159039, 6477117, 19431351]

約数ペア:

[(1, 19431351), (3, 6477117), (9, 2159039), (47, 413433), (71, 273681), (141, 137811), (213, 91227), (423, 45937), (639, 30409), (647, 30033), (1941, 10011), (3337, 5823)]