21818118

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1439}}^1$

素因数の和:1489

約数の個数: 48

約数和(自身を含む): 52669440

約数和(自身を除く): 30851322

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 361, 399, 722, 798, 1083, 1439, 2166, 2527, 2878, 4317, 5054, 7581, 8634, 10073, 15162, 20146, 27341, 30219, 54682, 60438, 82023, 164046, 191387, 382774, 519479, 574161, 1038958, 1148322, 1558437, 3116874, 3636353, 7272706, 10909059, 21818118]

約数ペア:

[(1, 21818118), (2, 10909059), (3, 7272706), (6, 3636353), (7, 3116874), (14, 1558437), (19, 1148322), (21, 1038958), (38, 574161), (42, 519479), (57, 382774), (114, 191387), (133, 164046), (266, 82023), (361, 60438), (399, 54682), (722, 30219), (798, 27341), (1083, 20146), (1439, 15162), (2166, 10073), (2527, 8634), (2878, 7581), (4317, 5054)]