21053259

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3719}}^1$

素因数の和:3779

約数の個数: 24

約数和(自身を含む): 33078240

約数和(自身を除く): 12024981

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3719, 5661, 11157, 33471, 63223, 137603, 189669, 412809, 569007, 1238427, 2339251, 7017753, 21053259]

約数ペア:

[(1, 21053259), (3, 7017753), (9, 2339251), (17, 1238427), (37, 569007), (51, 412809), (111, 189669), (153, 137603), (333, 63223), (629, 33471), (1887, 11157), (3719, 5661)]