19941815

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{433}}^1$

素因数の和:650

約数の個数: 16

約数和(自身を含む): 24540096

約数和(自身を除く): 4598281

約数列:

[1, 5, 61, 151, 305, 433, 755, 2165, 9211, 26413, 46055, 65383, 132065, 326915, 3988363, 19941815]

約数ペア:

[(1, 19941815), (5, 3988363), (61, 326915), (151, 132065), (305, 65383), (433, 46055), (755, 26413), (2165, 9211)]