21117398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{9419}}^1$

素因数の和:9499

約数の個数: 16

約数和(自身を含む): 33912000

約数和(自身を除く): 12794602

約数列:

[1, 2, 19, 38, 59, 118, 1121, 2242, 9419, 18838, 178961, 357922, 555721, 1111442, 10558699, 21117398]

約数ペア:

[(1, 21117398), (2, 10558699), (19, 1111442), (38, 555721), (59, 357922), (118, 178961), (1121, 18838), (2242, 9419)]