19988526

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 21068754

約数列:

[1, 2, 3, 6, 53, 106, 159, 239, 263, 318, 478, 526, 717, 789, 1434, 1578, 12667, 13939, 25334, 27878, 38001, 41817, 62857, 76002, 83634, 125714, 188571, 377142, 3331421, 6662842, 9994263, 19988526]

約数ペア:

[(1, 19988526), (2, 9994263), (3, 6662842), (6, 3331421), (53, 377142), (106, 188571), (159, 125714), (239, 83634), (263, 76002), (318, 62857), (478, 41817), (526, 38001), (717, 27878), (789, 25334), (1434, 13939), (1578, 12667)]