19967485

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{499}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 4656515

約数列:

[1, 5, 53, 151, 265, 499, 755, 2495, 8003, 26447, 40015, 75349, 132235, 376745, 3993497, 19967485]

約数ペア:

[(1, 19967485), (5, 3993497), (53, 376745), (151, 132235), (265, 75349), (499, 40015), (755, 26447), (2495, 8003)]