81931993

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{33703}}^1$

素因数の和:33744

約数の個数: 16

約数和(自身を含む): 101920896

約数和(自身を除く): 19988903

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 33703, 370733, 438139, 572951, 4819529, 6302461, 7448363, 81931993]

約数ペア:

[(1, 81931993), (11, 7448363), (13, 6302461), (17, 4819529), (143, 572951), (187, 438139), (221, 370733), (2431, 33703)]