19815717

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{313}}^1\times {\mathrm{449}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 27129600

約数和(自身を除く): 7313883

約数列:

[1, 3, 47, 141, 313, 449, 939, 1347, 14711, 21103, 44133, 63309, 140537, 421611, 6605239, 19815717]

約数ペア:

[(1, 19815717), (3, 6605239), (47, 421611), (141, 140537), (313, 63309), (449, 44133), (939, 21103), (1347, 14711)]