20800647

素因数分解:

$3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{467}}^1$

素因数の和:588

約数の個数: 36

約数和(自身を含む): 35372376

約数和(自身を除く): 14571729

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 147, 303, 441, 467, 707, 909, 1401, 2121, 3269, 4203, 4949, 6363, 9807, 14847, 22883, 29421, 44541, 47167, 68649, 141501, 205947, 330169, 424503, 990507, 2311183, 2971521, 6933549, 20800647]

約数ペア:

[(1, 20800647), (3, 6933549), (7, 2971521), (9, 2311183), (21, 990507), (49, 424503), (63, 330169), (101, 205947), (147, 141501), (303, 68649), (441, 47167), (467, 44541), (707, 29421), (909, 22883), (1401, 14847), (2121, 9807), (3269, 6363), (4203, 4949)]