19811478

素因数分解:

$2^1\times 3^1\times {\mathrm{107}}^1\times {\mathrm{30859}}^1$

素因数の和:30971

約数の個数: 16

約数和(自身を含む): 39994560

約数和(自身を除く): 20183082

約数列:

[1, 2, 3, 6, 107, 214, 321, 642, 30859, 61718, 92577, 185154, 3301913, 6603826, 9905739, 19811478]

約数ペア:

[(1, 19811478), (2, 9905739), (3, 6603826), (6, 3301913), (107, 185154), (214, 92577), (321, 61718), (642, 30859)]