19891912

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{479}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 18988088

約数列:

[1, 2, 4, 8, 29, 58, 116, 179, 232, 358, 479, 716, 958, 1432, 1916, 3832, 5191, 10382, 13891, 20764, 27782, 41528, 55564, 85741, 111128, 171482, 342964, 685928, 2486489, 4972978, 9945956, 19891912]

約数ペア:

[(1, 19891912), (2, 9945956), (4, 4972978), (8, 2486489), (29, 685928), (58, 342964), (116, 171482), (179, 111128), (232, 85741), (358, 55564), (479, 41528), (716, 27782), (958, 20764), (1432, 13891), (1916, 10382), (3832, 5191)]