19719896

素因数分解:

$2^3\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1009}}^1$

素因数の和:1371

約数の個数: 32

約数和(自身を含む): 42420000

約数和(自身を除く): 22700104

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 349, 698, 1009, 1396, 2018, 2443, 2792, 4036, 4886, 7063, 8072, 9772, 14126, 19544, 28252, 56504, 352141, 704282, 1408564, 2464987, 2817128, 4929974, 9859948, 19719896]

約数ペア:

[(1, 19719896), (2, 9859948), (4, 4929974), (7, 2817128), (8, 2464987), (14, 1408564), (28, 704282), (56, 352141), (349, 56504), (698, 28252), (1009, 19544), (1396, 14126), (2018, 9772), (2443, 8072), (2792, 7063), (4036, 4886)]