20402697

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{13309}}^1$

素因数の和:13392

約数の個数: 16

約数和(自身を含む): 31518080

約数和(自身を除く): 11115383

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 13309, 39927, 93163, 279489, 971557, 2914671, 6800899, 20402697]

約数ペア:

[(1, 20402697), (3, 6800899), (7, 2914671), (21, 971557), (73, 279489), (219, 93163), (511, 39927), (1533, 13309)]