197389591

素因数分解:

$7^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 235026960

約数和(自身を除く): 37637369

約数列:

[1, 7, 49, 73, 139, 397, 511, 973, 2779, 3577, 6811, 10147, 19453, 28981, 55183, 71029, 202867, 386281, 497203, 1420069, 2703967, 4028359, 28198513, 197389591]

約数ペア:

[(1, 197389591), (7, 28198513), (49, 4028359), (73, 2703967), (139, 1420069), (397, 497203), (511, 386281), (973, 202867), (2779, 71029), (3577, 55183), (6811, 28981), (10147, 19453)]