20688017

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6763}}^1$

素因数の和:6812

約数の個数: 16

約数和(自身を含む): 25973760

約数和(自身を除く): 5285743

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6763, 47341, 128497, 155549, 899479, 1088843, 2955431, 20688017]

約数ペア:

[(1, 20688017), (7, 2955431), (19, 1088843), (23, 899479), (133, 155549), (161, 128497), (437, 47341), (3059, 6763)]