20667003

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51797}}^1$

素因数の和:51826

約数の個数: 16

約数和(自身を含む): 33150720

約数和(自身を除く): 12483717

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51797, 155391, 362579, 984143, 1087737, 2952429, 6889001, 20667003]

約数ペア:

[(1, 20667003), (3, 6889001), (7, 2952429), (19, 1087737), (21, 984143), (57, 362579), (133, 155391), (399, 51797)]