217490139

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{653}}^1\times {\mathrm{1609}}^1$

素因数の和:2291

約数の個数: 24

約数和(自身を含む): 328517280

約数和(自身を除く): 111027141

約数列:

[1, 3, 9, 23, 69, 207, 653, 1609, 1959, 4827, 5877, 14481, 15019, 37007, 45057, 111021, 135171, 333063, 1050677, 3152031, 9456093, 24165571, 72496713, 217490139]

約数ペア:

[(1, 217490139), (3, 72496713), (9, 24165571), (23, 9456093), (69, 3152031), (207, 1050677), (653, 333063), (1609, 135171), (1959, 111021), (4827, 45057), (5877, 37007), (14481, 15019)]