19964497

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4057}}^1$

素因数の和:4120

約数の個数: 16

約数和(自身を含む): 24672640

約数和(自身を除く): 4708143

約数列:

[1, 7, 19, 37, 133, 259, 703, 4057, 4921, 28399, 77083, 150109, 539581, 1050763, 2852071, 19964497]

約数ペア:

[(1, 19964497), (7, 2852071), (19, 1050763), (37, 539581), (133, 150109), (259, 77083), (703, 28399), (4057, 4921)]