21897285

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{14173}}^1$

素因数の和:14284

約数の個数: 16

約数和(自身を含む): 35378304

約数和(自身を除く): 13481019

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 14173, 42519, 70865, 212595, 1459819, 4379457, 7299095, 21897285]

約数ペア:

[(1, 21897285), (3, 7299095), (5, 4379457), (15, 1459819), (103, 212595), (309, 70865), (515, 42519), (1545, 14173)]