19077121

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 24149760

約数和(自身を除く): 5072639

約数列:

[1, 7, 19, 31, 49, 133, 217, 589, 661, 931, 1519, 4123, 4627, 12559, 20491, 28861, 32389, 87913, 143437, 389329, 615391, 1004059, 2725303, 19077121]

約数ペア:

[(1, 19077121), (7, 2725303), (19, 1004059), (31, 615391), (49, 389329), (133, 143437), (217, 87913), (589, 32389), (661, 28861), (931, 20491), (1519, 12559), (4123, 4627)]