201311289

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{61961}}^1$

素因数の和:62005

約数の個数: 18

約数和(自身を含む): 306897786

約数和(自身を除く): 105586497

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 61961, 185883, 557649, 1177259, 3531777, 10595331, 22367921, 67103763, 201311289]

約数ペア:

[(1, 201311289), (3, 67103763), (9, 22367921), (19, 10595331), (57, 3531777), (171, 1177259), (361, 557649), (1083, 185883), (3249, 61961)]