261181347

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157433}}^1$

素因数の和:157522

約数の個数: 16

約数和(自身を含む): 403031040

約数和(自身を除く): 141849693

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 157433, 472299, 1102031, 3306093, 12437207, 37311621, 87060449, 261181347]

約数ペア:

[(1, 261181347), (3, 87060449), (7, 37311621), (21, 12437207), (79, 3306093), (237, 1102031), (553, 472299), (1659, 157433)]