19930015

素因数分解:

$5^1\times 7^3\times {\mathrm{11621}}^1$

素因数の和:11647

約数の個数: 16

約数和(自身を含む): 27892800

約数和(自身を除く): 7962785

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 11621, 58105, 81347, 406735, 569429, 2847145, 3986003, 19930015]

約数ペア:

[(1, 19930015), (5, 3986003), (7, 2847145), (35, 569429), (49, 406735), (245, 81347), (343, 58105), (1715, 11621)]