81781469

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{907}}^1\times {\mathrm{1171}}^1$

素因数の和:2096

約数の個数: 16

約数和(自身を含む): 102160896

約数和(自身を除く): 20379427

約数列:

[1, 7, 11, 77, 907, 1171, 6349, 8197, 9977, 12881, 69839, 90167, 1062097, 7434679, 11683067, 81781469]

約数ペア:

[(1, 81781469), (7, 11683067), (11, 7434679), (77, 1062097), (907, 90167), (1171, 69839), (6349, 12881), (8197, 9977)]