664461721

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{383}}^1\times {\mathrm{22531}}^1$

素因数の和:22932

約数の個数: 16

約数和(自身を含む): 830619648

約数和(自身を除く): 166157927

約数列:

[1, 7, 11, 77, 383, 2681, 4213, 22531, 29491, 157717, 247841, 1734887, 8629373, 60405611, 94923103, 664461721]

約数ペア:

[(1, 664461721), (7, 94923103), (11, 60405611), (77, 8629373), (383, 1734887), (2681, 247841), (4213, 157717), (22531, 29491)]