19879851

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{3643}}^1$

素因数の和:3770

約数の個数: 16

約数和(自身を含む): 28335744

約数和(自身を除く): 8455893

約数列:

[1, 3, 17, 51, 107, 321, 1819, 3643, 5457, 10929, 61931, 185793, 389801, 1169403, 6626617, 19879851]

約数ペア:

[(1, 19879851), (3, 6626617), (17, 1169403), (51, 389801), (107, 185793), (321, 61931), (1819, 10929), (3643, 5457)]