21128734

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{9901}}^1$

素因数の和:10011

約数の個数: 16

約数和(自身を含む): 34934256

約数和(自身を除く): 13805522

約数列:

[1, 2, 11, 22, 97, 194, 1067, 2134, 9901, 19802, 108911, 217822, 960397, 1920794, 10564367, 21128734]

約数ペア:

[(1, 21128734), (2, 10564367), (11, 1920794), (22, 960397), (97, 217822), (194, 108911), (1067, 19802), (2134, 9901)]