19919427

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{35507}}^1$

素因数の和:35538

約数の個数: 16

約数和(自身を含む): 30678912

約数和(自身を除く): 10759485

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 35507, 106521, 390577, 603619, 1171731, 1810857, 6639809, 19919427]

約数ペア:

[(1, 19919427), (3, 6639809), (11, 1810857), (17, 1171731), (33, 603619), (51, 390577), (187, 106521), (561, 35507)]