18740876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 41513472

約数和(自身を除く): 22772596

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 71, 77, 142, 154, 284, 308, 497, 781, 857, 994, 1562, 1714, 1988, 3124, 3428, 5467, 5999, 9427, 10934, 11998, 18854, 21868, 23996, 37708, 60847, 65989, 121694, 131978, 243388, 263956, 425929, 669317, 851858, 1338634, 1703716, 2677268, 4685219, 9370438, 18740876]

約数ペア:

[(1, 18740876), (2, 9370438), (4, 4685219), (7, 2677268), (11, 1703716), (14, 1338634), (22, 851858), (28, 669317), (44, 425929), (71, 263956), (77, 243388), (142, 131978), (154, 121694), (284, 65989), (308, 60847), (497, 37708), (781, 23996), (857, 21868), (994, 18854), (1562, 11998), (1714, 10934), (1988, 9427), (3124, 5999), (3428, 5467)]