291228291

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{115981}}^1$

素因数の和:116024

約数の個数: 20

約数和(自身を含む): 449082304

約数和(自身を除く): 157854013

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 115981, 347943, 1043829, 3131487, 3595411, 9394461, 10786233, 32358699, 97076097, 291228291]

約数ペア:

[(1, 291228291), (3, 97076097), (9, 32358699), (27, 10786233), (31, 9394461), (81, 3595411), (93, 3131487), (279, 1043829), (837, 347943), (2511, 115981)]