13218231

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19937}}^1$

素因数の和:19970

約数の個数: 16

約数和(自身を含む): 20097504

約数和(自身を除く): 6879273

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 19937, 59811, 259181, 338929, 777543, 1016787, 4406077, 13218231]

約数ペア:

[(1, 13218231), (3, 4406077), (13, 1016787), (17, 777543), (39, 338929), (51, 259181), (221, 59811), (663, 19937)]