21687195

素因数分解:

$3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9209}}^1$

素因数の和:9374

約数の個数: 16

約数和(自身を含む): 34924320

約数和(自身を除く): 13237125

約数列:

[1, 3, 5, 15, 157, 471, 785, 2355, 9209, 27627, 46045, 138135, 1445813, 4337439, 7229065, 21687195]

約数ペア:

[(1, 21687195), (3, 7229065), (5, 4337439), (15, 1445813), (157, 138135), (471, 46045), (785, 27627), (2355, 9209)]