745975321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431449}}^1$

素因数の和:431488

約数の個数: 16

約数和(自身を含む): 966448000

約数和(自身を除く): 220472679

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 431449, 3020143, 5608837, 8197531, 39261859, 57382717, 106567903, 745975321]

約数ペア:

[(1, 745975321), (7, 106567903), (13, 57382717), (19, 39261859), (91, 8197531), (133, 5608837), (247, 3020143), (1729, 431449)]