21277836

素因数分解:

$2^2\times 3^3\times {\mathrm{271}}^1\times {\mathrm{727}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 55444480

約数和(自身を除く): 34166644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 271, 542, 727, 813, 1084, 1454, 1626, 2181, 2439, 2908, 3252, 4362, 4878, 6543, 7317, 8724, 9756, 13086, 14634, 19629, 26172, 29268, 39258, 78516, 197017, 394034, 591051, 788068, 1182102, 1773153, 2364204, 3546306, 5319459, 7092612, 10638918, 21277836]

約数ペア:

[(1, 21277836), (2, 10638918), (3, 7092612), (4, 5319459), (6, 3546306), (9, 2364204), (12, 1773153), (18, 1182102), (27, 788068), (36, 591051), (54, 394034), (108, 197017), (271, 78516), (542, 39258), (727, 29268), (813, 26172), (1084, 19629), (1454, 14634), (1626, 13086), (2181, 9756), (2439, 8724), (2908, 7317), (3252, 6543), (4362, 4878)]