21248584885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1117}}^1\times {\mathrm{2203}}^1$

素因数の和:3493

約数の個数: 32

約数和(自身を含む): 28031283072

約数和(自身を除く): 6782698187

約数列:

[1, 5, 11, 55, 157, 785, 1117, 1727, 2203, 5585, 8635, 11015, 12287, 24233, 61435, 121165, 175369, 345871, 876845, 1729355, 1929059, 2460751, 3804581, 9645295, 12303755, 19022905, 27068261, 135341305, 386337907, 1931689535, 4249716977, 21248584885]

約数ペア:

[(1, 21248584885), (5, 4249716977), (11, 1931689535), (55, 386337907), (157, 135341305), (785, 27068261), (1117, 19022905), (1727, 12303755), (2203, 9645295), (5585, 3804581), (8635, 2460751), (11015, 1929059), (12287, 1729355), (24233, 876845), (61435, 345871), (121165, 175369)]