21649653

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{467}}^1$

素因数の和:594

約数の個数: 32

約数和(自身を含む): 34369920

約数和(自身を除く): 12720267

約数列:

[1, 3, 9, 17, 27, 51, 101, 153, 303, 459, 467, 909, 1401, 1717, 2727, 4203, 5151, 7939, 12609, 15453, 23817, 46359, 47167, 71451, 141501, 214353, 424503, 801839, 1273509, 2405517, 7216551, 21649653]

約数ペア:

[(1, 21649653), (3, 7216551), (9, 2405517), (17, 1273509), (27, 801839), (51, 424503), (101, 214353), (153, 141501), (303, 71451), (459, 47167), (467, 46359), (909, 23817), (1401, 15453), (1717, 12609), (2727, 7939), (4203, 5151)]