128691261

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{967}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 202397184

約数和(自身を除く): 73705923

約数列:

[1, 3, 9, 27, 31, 53, 81, 93, 159, 279, 477, 837, 967, 1431, 1643, 2511, 2901, 4293, 4929, 8703, 14787, 26109, 29977, 44361, 51251, 78327, 89931, 133083, 153753, 269793, 461259, 809379, 1383777, 1588781, 2428137, 4151331, 4766343, 14299029, 42897087, 128691261]

約数ペア:

[(1, 128691261), (3, 42897087), (9, 14299029), (27, 4766343), (31, 4151331), (53, 2428137), (81, 1588781), (93, 1383777), (159, 809379), (279, 461259), (477, 269793), (837, 153753), (967, 133083), (1431, 89931), (1643, 78327), (2511, 51251), (2901, 44361), (4293, 29977), (4929, 26109), (8703, 14787)]