81891026

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9931}}^1$

素因数の和:9990

約数の個数: 32

約数和(自身を含む): 152555520

約数和(自身を除く): 70664494

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 434, 589, 1178, 4123, 8246, 9931, 19862, 69517, 139034, 188689, 307861, 377378, 615722, 1320823, 2155027, 2641646, 4310054, 5849359, 11698718, 40945513, 81891026]

約数ペア:

[(1, 81891026), (2, 40945513), (7, 11698718), (14, 5849359), (19, 4310054), (31, 2641646), (38, 2155027), (62, 1320823), (133, 615722), (217, 377378), (266, 307861), (434, 188689), (589, 139034), (1178, 69517), (4123, 19862), (8246, 9931)]