21988635

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9337}}^1$

素因数の和:9502

約数の個数: 16

約数和(自身を含む): 35409696

約数和(自身を除く): 13421061

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9337, 28011, 46685, 140055, 1465909, 4397727, 7329545, 21988635]

約数ペア:

[(1, 21988635), (3, 7329545), (5, 4397727), (15, 1465909), (157, 140055), (471, 46685), (785, 28011), (2355, 9337)]