21678118

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 41674752

約数和(自身を除く): 19996634

約数列:

[1, 2, 7, 11, 14, 22, 67, 77, 121, 134, 154, 191, 242, 382, 469, 737, 847, 938, 1337, 1474, 1694, 2101, 2674, 4202, 5159, 8107, 10318, 12797, 14707, 16214, 23111, 25594, 29414, 46222, 56749, 89579, 113498, 140767, 161777, 179158, 281534, 323554, 985369, 1548437, 1970738, 3096874, 10839059, 21678118]

約数ペア:

[(1, 21678118), (2, 10839059), (7, 3096874), (11, 1970738), (14, 1548437), (22, 985369), (67, 323554), (77, 281534), (121, 179158), (134, 161777), (154, 140767), (191, 113498), (242, 89579), (382, 56749), (469, 46222), (737, 29414), (847, 25594), (938, 23111), (1337, 16214), (1474, 14707), (1694, 12797), (2101, 10318), (2674, 8107), (4202, 5159)]