21050671103

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1\times {\mathrm{8161}}^1$

素因数の和:8559

約数の個数: 32

約数和(自身を含む): 26546741760

約数和(自身を除く): 5496070657

約数列:

[1, 7, 11, 77, 139, 241, 973, 1529, 1687, 2651, 8161, 10703, 18557, 33499, 57127, 89771, 234493, 368489, 628397, 1134379, 1966801, 2579423, 7940653, 12478169, 13767607, 21634811, 87347183, 151443677, 273385339, 1913697373, 3007238729, 21050671103]

約数ペア:

[(1, 21050671103), (7, 3007238729), (11, 1913697373), (77, 273385339), (139, 151443677), (241, 87347183), (973, 21634811), (1529, 13767607), (1687, 12478169), (2651, 7940653), (8161, 2579423), (10703, 1966801), (18557, 1134379), (33499, 628397), (57127, 368489), (89771, 234493)]