668405647

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{401}}^1\times {\mathrm{1409}}^1$

素因数の和:1843

約数の個数: 24

約数和(自身を含む): 829824480

約数和(自身を除く): 161418833

約数列:

[1, 7, 13, 91, 169, 401, 1183, 1409, 2807, 5213, 9863, 18317, 36491, 67769, 128219, 238121, 474383, 565009, 1666847, 3955063, 7345117, 51415819, 95486521, 668405647]

約数ペア:

[(1, 668405647), (7, 95486521), (13, 51415819), (91, 7345117), (169, 3955063), (401, 1666847), (1183, 565009), (1409, 474383), (2807, 238121), (5213, 128219), (9863, 67769), (18317, 36491)]