81217279

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{33409}}^1$

素因数の和:33450

約数の個数: 16

約数和(自身を含む): 101031840

約数和(自身を除く): 19814561

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 33409, 367499, 434317, 567953, 4777487, 6247483, 7383389, 81217279]

約数ペア:

[(1, 81217279), (11, 7383389), (13, 6247483), (17, 4777487), (143, 567953), (187, 434317), (221, 367499), (2431, 33409)]