720797

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:89

約数の個数: 24

約数和(自身を含む): 970368

約数和(自身を除く): 249571

約数列:

[1, 7, 11, 23, 37, 77, 121, 161, 253, 259, 407, 847, 851, 1771, 2783, 2849, 4477, 5957, 9361, 19481, 31339, 65527, 102971, 720797]

約数ペア:

[(1, 720797), (7, 102971), (11, 65527), (23, 31339), (37, 19481), (77, 9361), (121, 5957), (161, 4477), (253, 2849), (259, 2783), (407, 1771), (847, 851)]