21077348516

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{549863}}^1$

素因数の和:549948

約数の個数: 36

約数和(自身を含む): 43324884288

約数和(自身を除く): 22247535772

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 1369, 2738, 5476, 9583, 19166, 38332, 549863, 1099726, 2199452, 3849041, 7698082, 15396164, 20344931, 40689862, 81379724, 142414517, 284829034, 569658068, 752762447, 1505524894, 3011049788, 5269337129, 10538674258, 21077348516]

約数ペア:

[(1, 21077348516), (2, 10538674258), (4, 5269337129), (7, 3011049788), (14, 1505524894), (28, 752762447), (37, 569658068), (74, 284829034), (148, 142414517), (259, 81379724), (518, 40689862), (1036, 20344931), (1369, 15396164), (2738, 7698082), (5476, 3849041), (9583, 2199452), (19166, 1099726), (38332, 549863)]