21132565

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{433}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 26123328

約数和(自身を除く): 4990763

約数列:

[1, 5, 43, 215, 227, 433, 1135, 2165, 9761, 18619, 48805, 93095, 98291, 491455, 4226513, 21132565]

約数ペア:

[(1, 21132565), (5, 4226513), (43, 491455), (215, 98291), (227, 93095), (433, 48805), (1135, 18619), (2165, 9761)]