12780911

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 15146880

約数和(自身を除く): 2365969

約数列:

[1, 11, 13, 139, 143, 643, 1529, 1807, 7073, 8359, 19877, 89377, 91949, 983147, 1161901, 12780911]

約数ペア:

[(1, 12780911), (11, 1161901), (13, 983147), (139, 91949), (143, 89377), (643, 19877), (1529, 8359), (1807, 7073)]