21000741866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{773}}^1\times {\mathrm{911}}^1$

素因数の和:1767

約数の個数: 64

約数和(自身を含む): 36051111936

約数和(自身を除く): 15050370070

約数列:

[1, 2, 13, 26, 31, 37, 62, 74, 403, 481, 773, 806, 911, 962, 1147, 1546, 1822, 2294, 10049, 11843, 14911, 20098, 23686, 23963, 28241, 28601, 29822, 33707, 47926, 56482, 57202, 67414, 311519, 367133, 371813, 438191, 623038, 704203, 734266, 743626, 876382, 886631, 1044917, 1408406, 1773262, 2089834, 9154639, 11526203, 13583921, 18309278, 21830293, 23052406, 26055511, 27167842, 43660586, 52111022, 283793809, 338721643, 567587618, 677443286, 807720841, 1615441682, 10500370933, 21000741866]

約数ペア:

[(1, 21000741866), (2, 10500370933), (13, 1615441682), (26, 807720841), (31, 677443286), (37, 567587618), (62, 338721643), (74, 283793809), (403, 52111022), (481, 43660586), (773, 27167842), (806, 26055511), (911, 23052406), (962, 21830293), (1147, 18309278), (1546, 13583921), (1822, 11526203), (2294, 9154639), (10049, 2089834), (11843, 1773262), (14911, 1408406), (20098, 1044917), (23686, 886631), (23963, 876382), (28241, 743626), (28601, 734266), (29822, 704203), (33707, 623038), (47926, 438191), (56482, 371813), (57202, 367133), (67414, 311519)]