81262489

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2713}}^1$

素因数の和:3120

約数の個数: 16

約数和(自身を含む): 101612160

約数和(自身を除く): 20349671

約数列:

[1, 7, 11, 77, 389, 2713, 2723, 4279, 18991, 29843, 29953, 208901, 1055357, 7387499, 11608927, 81262489]

約数ペア:

[(1, 81262489), (7, 11608927), (11, 7387499), (77, 1055357), (389, 208901), (2713, 29953), (2723, 29843), (4279, 18991)]