20156780931

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3643}}^1\times {\mathrm{7121}}^1$

素因数の和:10811

約数の個数: 32

約数和(自身を含む): 31558322688

約数和(自身を除く): 11401541757

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 3643, 7121, 10929, 21363, 25501, 49847, 76503, 134791, 149541, 263477, 404373, 790431, 943537, 1844339, 2830611, 5533017, 25941803, 77825409, 181592621, 544777863, 959846711, 2879540133, 6718926977, 20156780931]

約数ペア:

[(1, 20156780931), (3, 6718926977), (7, 2879540133), (21, 959846711), (37, 544777863), (111, 181592621), (259, 77825409), (777, 25941803), (3643, 5533017), (7121, 2830611), (10929, 1844339), (21363, 943537), (25501, 790431), (49847, 404373), (76503, 263477), (134791, 149541)]