19051978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{11863}}^1$

素因数の和:11949

約数の個数: 16

約数和(自身を含む): 31605696

約数和(自身を除く): 12553718

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 11863, 23726, 130493, 260986, 865999, 1731998, 9525989, 19051978]

約数ペア:

[(1, 19051978), (2, 9525989), (11, 1731998), (22, 865999), (73, 260986), (146, 130493), (803, 23726), (1606, 11863)]