81639019

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{2083}}^1$

素因数の和:2610

約数の個数: 16

約数和(自身を含む): 102032640

約数和(自身を除く): 20393621

約数列:

[1, 7, 11, 77, 509, 2083, 3563, 5599, 14581, 22913, 39193, 160391, 1060247, 7421729, 11662717, 81639019]

約数ペア:

[(1, 81639019), (7, 11662717), (11, 7421729), (77, 1060247), (509, 160391), (2083, 39193), (3563, 22913), (5599, 14581)]