21689374

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{1217}}^1$

素因数の和:1312

約数の個数: 32

約数和(自身を含む): 39755520

約数和(自身を除く): 18066146

約数列:

[1, 2, 7, 14, 19, 38, 67, 133, 134, 266, 469, 938, 1217, 1273, 2434, 2546, 8519, 8911, 17038, 17822, 23123, 46246, 81539, 161861, 163078, 323722, 570773, 1141546, 1549241, 3098482, 10844687, 21689374]

約数ペア:

[(1, 21689374), (2, 10844687), (7, 3098482), (14, 1549241), (19, 1141546), (38, 570773), (67, 323722), (133, 163078), (134, 161861), (266, 81539), (469, 46246), (938, 23123), (1217, 17822), (1273, 17038), (2434, 8911), (2546, 8519)]