291257991

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{21881}}^1$

素因数の和:21936

約数の個数: 32

約数和(自身を含む): 472651200

約数和(自身を除く): 181393209

約数列:

[1, 3, 9, 17, 27, 29, 51, 87, 153, 261, 459, 493, 783, 1479, 4437, 13311, 21881, 65643, 196929, 371977, 590787, 634549, 1115931, 1903647, 3347793, 5710941, 10043379, 10787333, 17132823, 32361999, 97085997, 291257991]

約数ペア:

[(1, 291257991), (3, 97085997), (9, 32361999), (17, 17132823), (27, 10787333), (29, 10043379), (51, 5710941), (87, 3347793), (153, 1903647), (261, 1115931), (459, 634549), (493, 590787), (783, 371977), (1479, 196929), (4437, 65643), (13311, 21881)]