81257183

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{569}}^1\times {\mathrm{887}}^1$

素因数の和:1486

約数の個数: 16

約数和(自身を含む): 97182720

約数和(自身を除く): 15925537

約数列:

[1, 7, 23, 161, 569, 887, 3983, 6209, 13087, 20401, 91609, 142807, 504703, 3532921, 11608169, 81257183]

約数ペア:

[(1, 81257183), (7, 11608169), (23, 3532921), (161, 504703), (569, 142807), (887, 91609), (3983, 20401), (6209, 13087)]