19380872

素因数分解:

$2^3\times 7^4\times {\mathrm{1009}}^1$

素因数の和:1043

約数の個数: 40

約数和(自身を含む): 42435150

約数和(自身を除く): 23054278

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1009, 1372, 2018, 2401, 2744, 4036, 4802, 7063, 8072, 9604, 14126, 19208, 28252, 49441, 56504, 98882, 197764, 346087, 395528, 692174, 1384348, 2422609, 2768696, 4845218, 9690436, 19380872]

約数ペア:

[(1, 19380872), (2, 9690436), (4, 4845218), (7, 2768696), (8, 2422609), (14, 1384348), (28, 692174), (49, 395528), (56, 346087), (98, 197764), (196, 98882), (343, 56504), (392, 49441), (686, 28252), (1009, 19208), (1372, 14126), (2018, 9604), (2401, 8072), (2744, 7063), (4036, 4802)]