1978888891

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1\times {\mathrm{13217}}^1$

素因数の和:13590

約数の個数: 16

約数和(自身を含む): 2300566464

約数和(自身を除く): 321677573

約数列:

[1, 7, 73, 293, 511, 2051, 13217, 21389, 92519, 149723, 964841, 3872581, 6753887, 27108067, 282698413, 1978888891]

約数ペア:

[(1, 1978888891), (7, 282698413), (73, 27108067), (293, 6753887), (511, 3872581), (2051, 964841), (13217, 149723), (21389, 92519)]