21581434

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{683}}^1$

素因数の和:790

約数の個数: 32

約数和(自身を含む): 38676096

約数和(自身を除く): 17094662

約数列:

[1, 2, 7, 14, 37, 61, 74, 122, 259, 427, 518, 683, 854, 1366, 2257, 4514, 4781, 9562, 15799, 25271, 31598, 41663, 50542, 83326, 176897, 291641, 353794, 583282, 1541531, 3083062, 10790717, 21581434]

約数ペア:

[(1, 21581434), (2, 10790717), (7, 3083062), (14, 1541531), (37, 583282), (61, 353794), (74, 291641), (122, 176897), (259, 83326), (427, 50542), (518, 41663), (683, 31598), (854, 25271), (1366, 15799), (2257, 9562), (4514, 4781)]