261640089

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{3319}}^1$

素因数の和:3805

約数の個数: 24

約数和(自身を含む): 398798400

約数和(自身を除く): 137158311

約数列:

[1, 3, 9, 19, 57, 171, 461, 1383, 3319, 4149, 8759, 9957, 26277, 29871, 63061, 78831, 189183, 567549, 1530059, 4590177, 13770531, 29071121, 87213363, 261640089]

約数ペア:

[(1, 261640089), (3, 87213363), (9, 29071121), (19, 13770531), (57, 4590177), (171, 1530059), (461, 567549), (1383, 189183), (3319, 78831), (4149, 63061), (8759, 29871), (9957, 26277)]