20158819681

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1823}}^1\times {\mathrm{11047}}^1$

素因数の和:12901

約数の個数: 32

約数和(自身を含む): 27083685888

約数和(自身を除く): 6924866207

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 1823, 11047, 12761, 20053, 23699, 77329, 121517, 140371, 143611, 165893, 260689, 850619, 1005277, 1579721, 1824823, 11058047, 20138681, 140970767, 221525491, 261802853, 1550678437, 1832619971, 2879831383, 20158819681]

約数ペア:

[(1, 20158819681), (7, 2879831383), (11, 1832619971), (13, 1550678437), (77, 261802853), (91, 221525491), (143, 140970767), (1001, 20138681), (1823, 11058047), (11047, 1824823), (12761, 1579721), (20053, 1005277), (23699, 850619), (77329, 260689), (121517, 165893), (140371, 143611)]