201991196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{51581}}^1$

素因数の和:51685

約数の個数: 24

約数和(自身を含む): 389959920

約数和(自身を除く): 187968724

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 51581, 103162, 206324, 567391, 1134782, 2269564, 4590709, 9181418, 18362836, 50497799, 100995598, 201991196]

約数ペア:

[(1, 201991196), (2, 100995598), (4, 50497799), (11, 18362836), (22, 9181418), (44, 4590709), (89, 2269564), (178, 1134782), (356, 567391), (979, 206324), (1958, 103162), (3916, 51581)]