261281277

素因数分解:

$3^2\times {\mathrm{193}}^1\times {\mathrm{359}}^1\times {\mathrm{419}}^1$

素因数の和:977

約数の個数: 24

約数和(自身を含む): 381326400

約数和(自身を除く): 120045123

約数列:

[1, 3, 9, 193, 359, 419, 579, 1077, 1257, 1737, 3231, 3771, 69287, 80867, 150421, 207861, 242601, 451263, 623583, 727803, 1353789, 29031253, 87093759, 261281277]

約数ペア:

[(1, 261281277), (3, 87093759), (9, 29031253), (193, 1353789), (359, 727803), (419, 623583), (579, 451263), (1077, 242601), (1257, 207861), (1737, 150421), (3231, 80867), (3771, 69287)]