2021086795

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4441949}}^1$

素因数の和:4441974

約数の個数: 16

約数和(自身を含む): 2984990400

約数和(自身を除く): 963903605

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 4441949, 22209745, 31093643, 57745337, 155468215, 288726685, 404217359, 2021086795]

約数ペア:

[(1, 2021086795), (5, 404217359), (7, 288726685), (13, 155468215), (35, 57745337), (65, 31093643), (91, 22209745), (455, 4441949)]