20684027

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 27291600

約数和(自身を除く): 6607573

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1709, 1729, 11963, 12103, 22217, 32471, 83741, 155519, 227297, 422123, 1088633, 1591079, 2954861, 20684027]

約数ペア:

[(1, 20684027), (7, 2954861), (13, 1591079), (19, 1088633), (49, 422123), (91, 227297), (133, 155519), (247, 83741), (637, 32471), (931, 22217), (1709, 12103), (1729, 11963)]