21442916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{263}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22465564

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 109, 187, 218, 263, 374, 436, 526, 748, 1052, 1199, 1853, 2398, 2893, 3706, 4471, 4796, 5786, 7412, 8942, 11572, 17884, 20383, 28667, 40766, 49181, 57334, 81532, 98362, 114668, 196724, 315337, 487339, 630674, 974678, 1261348, 1949356, 5360729, 10721458, 21442916]

約数ペア:

[(1, 21442916), (2, 10721458), (4, 5360729), (11, 1949356), (17, 1261348), (22, 974678), (34, 630674), (44, 487339), (68, 315337), (109, 196724), (187, 114668), (218, 98362), (263, 81532), (374, 57334), (436, 49181), (526, 40766), (748, 28667), (1052, 20383), (1199, 17884), (1853, 11572), (2398, 8942), (2893, 7412), (3706, 5786), (4471, 4796)]