261909777

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1\times {\mathrm{1499}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 352800000

約数和(自身を除く): 90890223

約数列:

[1, 3, 139, 417, 419, 1257, 1499, 4497, 58241, 174723, 208361, 625083, 628081, 1884243, 87303259, 261909777]

約数ペア:

[(1, 261909777), (3, 87303259), (139, 1884243), (417, 628081), (419, 625083), (1257, 208361), (1499, 174723), (4497, 58241)]