19977669

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3529}}^1$

素因数の和:3589

約数の個数: 24

約数和(自身を含む): 31388760

約数和(自身を除く): 11411091

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3529, 5661, 10587, 31761, 59993, 130573, 179979, 391719, 539937, 1175157, 2219741, 6659223, 19977669]

約数ペア:

[(1, 19977669), (3, 6659223), (9, 2219741), (17, 1175157), (37, 539937), (51, 391719), (111, 179979), (153, 130573), (333, 59993), (629, 31761), (1887, 10587), (3529, 5661)]