90307009

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{43}}^2$

素因数の和:146

約数の個数: 27

約数和(自身を含む): 106350633

約数和(自身を除く): 16043624

約数列:

[1, 13, 17, 43, 169, 221, 289, 559, 731, 1849, 2873, 3757, 7267, 9503, 12427, 24037, 31433, 48841, 123539, 161551, 312481, 408629, 534361, 2100163, 5312177, 6946693, 90307009]

約数ペア:

[(1, 90307009), (13, 6946693), (17, 5312177), (43, 2100163), (169, 534361), (221, 408629), (289, 312481), (559, 161551), (731, 123539), (1849, 48841), (2873, 31433), (3757, 24037), (7267, 12427)]