18997454

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71419}}^1$

素因数の和:71447

約数の個数: 16

約数和(自身を含む): 34281600

約数和(自身を除く): 15284146

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 71419, 142838, 499933, 999866, 1356961, 2713922, 9498727, 18997454]

約数ペア:

[(1, 18997454), (2, 9498727), (7, 2713922), (14, 1356961), (19, 999866), (38, 499933), (133, 142838), (266, 71419)]