19914608

素因数分解:

$2^4\times 7^1\times {\mathrm{269}}^1\times {\mathrm{661}}^1$

素因数の和:945

約数の個数: 40

約数和(自身を含む): 44327520

約数和(自身を除く): 24412912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 269, 538, 661, 1076, 1322, 1883, 2152, 2644, 3766, 4304, 4627, 5288, 7532, 9254, 10576, 15064, 18508, 30128, 37016, 74032, 177809, 355618, 711236, 1244663, 1422472, 2489326, 2844944, 4978652, 9957304, 19914608]

約数ペア:

[(1, 19914608), (2, 9957304), (4, 4978652), (7, 2844944), (8, 2489326), (14, 1422472), (16, 1244663), (28, 711236), (56, 355618), (112, 177809), (269, 74032), (538, 37016), (661, 30128), (1076, 18508), (1322, 15064), (1883, 10576), (2152, 9254), (2644, 7532), (3766, 5288), (4304, 4627)]