20117889

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 33372768

約数和(自身を除く): 13254879

約数列:

[1, 3, 9, 11, 27, 33, 67, 81, 99, 201, 297, 337, 603, 737, 891, 1011, 1809, 2211, 3033, 3707, 5427, 6633, 9099, 11121, 19899, 22579, 27297, 33363, 59697, 67737, 100089, 203211, 248369, 300267, 609633, 745107, 1828899, 2235321, 6705963, 20117889]

約数ペア:

[(1, 20117889), (3, 6705963), (9, 2235321), (11, 1828899), (27, 745107), (33, 609633), (67, 300267), (81, 248369), (99, 203211), (201, 100089), (297, 67737), (337, 59697), (603, 33363), (737, 27297), (891, 22579), (1011, 19899), (1809, 11121), (2211, 9099), (3033, 6633), (3707, 5427)]