201232521

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67961}}^1$

素因数の和:68021

約数の個数: 24

約数和(自身を含む): 339266304

約数和(自身を除く): 138033783

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 67961, 203883, 475727, 611649, 1427181, 3194167, 4281543, 9582501, 22359169, 28747503, 67077507, 201232521]

約数ペア:

[(1, 201232521), (3, 67077507), (7, 28747503), (9, 22359169), (21, 9582501), (47, 4281543), (63, 3194167), (141, 1427181), (329, 611649), (423, 475727), (987, 203883), (2961, 67961)]