25781661

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:797

約数の個数: 24

約数和(自身を含む): 38558520

約数和(自身を除く): 12776859

約数列:

[1, 3, 9, 41, 109, 123, 327, 369, 641, 981, 1923, 4469, 5769, 13407, 26281, 40221, 69869, 78843, 209607, 236529, 628821, 2864629, 8593887, 25781661]

約数ペア:

[(1, 25781661), (3, 8593887), (9, 2864629), (41, 628821), (109, 236529), (123, 209607), (327, 78843), (369, 69869), (641, 40221), (981, 26281), (1923, 13407), (4469, 5769)]