81108209

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{21739}}^1$

素因数の和:21800

約数の個数: 16

約数和(自身を含む): 102264960

約数和(自身を除く): 21156751

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 21739, 152173, 282607, 891299, 1978249, 6239093, 11586887, 81108209]

約数ペア:

[(1, 81108209), (7, 11586887), (13, 6239093), (41, 1978249), (91, 891299), (287, 282607), (533, 152173), (3731, 21739)]