21000425478

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{33981271}}^1$

素因数の和:33981379

約数の個数: 16

約数和(自身を含む): 42408627456

約数和(自身を除く): 21408201978

約数列:

[1, 2, 3, 6, 103, 206, 309, 618, 33981271, 67962542, 101943813, 203887626, 3500070913, 7000141826, 10500212739, 21000425478]

約数ペア:

[(1, 21000425478), (2, 10500212739), (3, 7000141826), (6, 3500070913), (103, 203887626), (206, 101943813), (309, 67962542), (618, 33981271)]