65520721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{21419}}^1$

素因数の和:21468

約数の個数: 16

約数和(自身を含む): 82252800

約数和(自身を除く): 16732079

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 21419, 149933, 406961, 492637, 2848727, 3448459, 9360103, 65520721]

約数ペア:

[(1, 65520721), (7, 9360103), (19, 3448459), (23, 2848727), (133, 492637), (161, 406961), (437, 149933), (3059, 21419)]