210494907

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{47059}}^1$

素因数の和:47143

約数の個数: 24

約数和(自身を含む): 352385280

約数和(自身を除く): 141890373

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 47059, 141177, 329413, 423531, 988239, 2964717, 3341189, 10023567, 23388323, 30070701, 70164969, 210494907]

約数ペア:

[(1, 210494907), (3, 70164969), (7, 30070701), (9, 23388323), (21, 10023567), (63, 3341189), (71, 2964717), (213, 988239), (497, 423531), (639, 329413), (1491, 141177), (4473, 47059)]