21003260

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8269}}^1$

素因数の和:8405

約数の個数: 24

約数和(自身を含む): 44459520

約数和(自身を除く): 23456260

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8269, 16538, 33076, 41345, 82690, 165380, 1050163, 2100326, 4200652, 5250815, 10501630, 21003260]

約数ペア:

[(1, 21003260), (2, 10501630), (4, 5250815), (5, 4200652), (10, 2100326), (20, 1050163), (127, 165380), (254, 82690), (508, 41345), (635, 33076), (1270, 16538), (2540, 8269)]