42891121

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{9619}}^1$

素因数の和:9653

約数の個数: 16

約数和(自身を含む): 53872000

約数和(自身を除く): 10980879

約数列:

[1, 7, 13, 49, 91, 343, 637, 4459, 9619, 67333, 125047, 471331, 875329, 3299317, 6127303, 42891121]

約数ペア:

[(1, 42891121), (7, 6127303), (13, 3299317), (49, 875329), (91, 471331), (343, 125047), (637, 67333), (4459, 9619)]