21420231489

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{790969}}^1$

素因数の和:791054

約数の個数: 32

約数和(自身を含む): 34169904000

約数和(自身を除く): 12749672511

約数列:

[1, 3, 9, 17, 27, 51, 59, 153, 177, 459, 531, 1003, 1593, 3009, 9027, 27081, 790969, 2372907, 7118721, 13446473, 21356163, 40339419, 46667171, 121018257, 140001513, 363054771, 420004539, 793341907, 1260013617, 2380025721, 7140077163, 21420231489]

約数ペア:

[(1, 21420231489), (3, 7140077163), (9, 2380025721), (17, 1260013617), (27, 793341907), (51, 420004539), (59, 363054771), (153, 140001513), (177, 121018257), (459, 46667171), (531, 40339419), (1003, 21356163), (1593, 13446473), (3009, 7118721), (9027, 2372907), (27081, 790969)]