7851897

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:155

約数の個数: 40

約数和(自身を含む): 12545280

約数和(自身を除く): 4693383

約数列:

[1, 3, 9, 27, 31, 53, 59, 81, 93, 159, 177, 279, 477, 531, 837, 1431, 1593, 1643, 1829, 2511, 3127, 4293, 4779, 4929, 5487, 9381, 14787, 16461, 28143, 44361, 49383, 84429, 96937, 133083, 148149, 253287, 290811, 872433, 2617299, 7851897]

約数ペア:

[(1, 7851897), (3, 2617299), (9, 872433), (27, 290811), (31, 253287), (53, 148149), (59, 133083), (81, 96937), (93, 84429), (159, 49383), (177, 44361), (279, 28143), (477, 16461), (531, 14787), (837, 9381), (1431, 5487), (1593, 4929), (1643, 4779), (1829, 4293), (2511, 3127)]