2021017715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1\times {\mathrm{1321}}^1$

素因数の和:1823

約数の個数: 32

約数和(自身を含む): 2638500480

約数和(自身を除く): 617482765

約数列:

[1, 5, 17, 41, 85, 205, 439, 697, 1321, 2195, 3485, 6605, 7463, 17999, 22457, 37315, 54161, 89995, 112285, 270805, 305983, 579919, 920737, 1529915, 2899595, 4603685, 9858623, 23776679, 49293115, 118883395, 404203543, 2021017715]

約数ペア:

[(1, 2021017715), (5, 404203543), (17, 118883395), (41, 49293115), (85, 23776679), (205, 9858623), (439, 4603685), (697, 2899595), (1321, 1529915), (2195, 920737), (3485, 579919), (6605, 305983), (7463, 270805), (17999, 112285), (22457, 89995), (37315, 54161)]