21743289

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{373}}^1$

素因数の和:526

約数の個数: 32

約数和(自身を含む): 34467840

約数和(自身を除く): 12724551

約数列:

[1, 3, 9, 17, 27, 51, 127, 153, 373, 381, 459, 1119, 1143, 2159, 3357, 3429, 6341, 6477, 10071, 19023, 19431, 47371, 57069, 58293, 142113, 171207, 426339, 805307, 1279017, 2415921, 7247763, 21743289]

約数ペア:

[(1, 21743289), (3, 7247763), (9, 2415921), (17, 1279017), (27, 805307), (51, 426339), (127, 171207), (153, 142113), (373, 58293), (381, 57069), (459, 47371), (1119, 19431), (1143, 19023), (2159, 10071), (3357, 6477), (3429, 6341)]