19956687

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2309}}^1$

素因数の和:2422

約数の個数: 16

約数和(自身を含む): 27646080

約数和(自身を除く): 7689393

約数列:

[1, 3, 43, 67, 129, 201, 2309, 2881, 6927, 8643, 99287, 154703, 297861, 464109, 6652229, 19956687]

約数ペア:

[(1, 19956687), (3, 6652229), (43, 464109), (67, 297861), (129, 154703), (201, 99287), (2309, 8643), (2881, 6927)]