21035481856

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4324729}}^1$

素因数の和:4324764

約数の個数: 36

約数和(自身を含む): 44198740600

約数和(自身を除く): 23163258744

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4864, 4324729, 8649458, 17298916, 34597832, 69195664, 82169851, 138391328, 164339702, 276782656, 328679404, 553565312, 657358808, 1107130624, 1314717616, 2629435232, 5258870464, 10517740928, 21035481856]

約数ペア:

[(1, 21035481856), (2, 10517740928), (4, 5258870464), (8, 2629435232), (16, 1314717616), (19, 1107130624), (32, 657358808), (38, 553565312), (64, 328679404), (76, 276782656), (128, 164339702), (152, 138391328), (256, 82169851), (304, 69195664), (608, 34597832), (1216, 17298916), (2432, 8649458), (4864, 4324729)]