19998242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{22171}}^1$

素因数の和:22225

約数の個数: 16

約数和(自身を含む): 33524064

約数和(自身を除く): 13525822

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 22171, 44342, 243881, 487762, 909011, 1818022, 9999121, 19998242]

約数ペア:

[(1, 19998242), (2, 9999121), (11, 1818022), (22, 909011), (41, 487762), (82, 243881), (451, 44342), (902, 22171)]