30991493

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 36257928

約数和(自身を除く): 5266435

約数列:

[1, 13, 17, 73, 113, 221, 289, 949, 1241, 1469, 1921, 3757, 8249, 16133, 21097, 24973, 32657, 107237, 140233, 274261, 424541, 1823029, 2383961, 30991493]

約数ペア:

[(1, 30991493), (13, 2383961), (17, 1823029), (73, 424541), (113, 274261), (221, 140233), (289, 107237), (949, 32657), (1241, 24973), (1469, 21097), (1921, 16133), (3757, 8249)]