2021987345

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{813677}}^1$

素因数の和:813760

約数の個数: 16

約数和(自身を含む): 2812071168

約数和(自身を除く): 790083823

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 813677, 4068385, 5695739, 28478695, 57771067, 288855335, 404397469, 2021987345]

約数ペア:

[(1, 2021987345), (5, 404397469), (7, 288855335), (35, 57771067), (71, 28478695), (355, 5695739), (497, 4068385), (2485, 813677)]