20584543

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 5681057

約数列:

[1, 7, 19, 37, 47, 89, 133, 259, 329, 623, 703, 893, 1691, 1739, 3293, 4183, 4921, 6251, 11837, 12173, 23051, 29281, 33041, 62567, 79477, 154771, 231287, 437969, 556339, 1083397, 2940649, 20584543]

約数ペア:

[(1, 20584543), (7, 2940649), (19, 1083397), (37, 556339), (47, 437969), (89, 231287), (133, 154771), (259, 79477), (329, 62567), (623, 33041), (703, 29281), (893, 23051), (1691, 12173), (1739, 11837), (3293, 6251), (4183, 4921)]