19407381

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{53}}^2$

素因数の和:170

約数の個数: 36

約数和(自身を含む): 31332672

約数和(自身を除く): 11925291

約数列:

[1, 3, 7, 21, 47, 49, 53, 141, 147, 159, 329, 371, 987, 1113, 2303, 2491, 2597, 2809, 6909, 7473, 7791, 8427, 17437, 19663, 52311, 58989, 122059, 132023, 137641, 366177, 396069, 412923, 924161, 2772483, 6469127, 19407381]

約数ペア:

[(1, 19407381), (3, 6469127), (7, 2772483), (21, 924161), (47, 412923), (49, 396069), (53, 366177), (141, 137641), (147, 132023), (159, 122059), (329, 58989), (371, 52311), (987, 19663), (1113, 17437), (2303, 8427), (2491, 7791), (2597, 7473), (2809, 6909)]