21000368624

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{3760811}}^1$

素因数の和:3761168

約数の個数: 20

約数和(自身を含む): 40804810200

約数和(自身を除く): 19804441576

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 5584, 3760811, 7521622, 15043244, 30086488, 60172976, 1312523039, 2625046078, 5250092156, 10500184312, 21000368624]

約数ペア:

[(1, 21000368624), (2, 10500184312), (4, 5250092156), (8, 2625046078), (16, 1312523039), (349, 60172976), (698, 30086488), (1396, 15043244), (2792, 7521622), (5584, 3760811)]