21355587

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12689}}^1$

素因数の和:12723

約数の個数: 24

約数和(自身を含む): 35633520

約数和(自身を除く): 14277933

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 153, 187, 561, 1683, 12689, 38067, 114201, 139579, 215713, 418737, 647139, 1256211, 1941417, 2372843, 7118529, 21355587]

約数ペア:

[(1, 21355587), (3, 7118529), (9, 2372843), (11, 1941417), (17, 1256211), (33, 647139), (51, 418737), (99, 215713), (153, 139579), (187, 114201), (561, 38067), (1683, 12689)]