19820781323

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{27809}}^1$

素因数の和:28091

約数の個数: 32

約数和(自身を含む): 24988953600

約数和(自身を除く): 5168172277

約数列:

[1, 7, 19, 23, 133, 161, 233, 437, 1631, 3059, 4427, 5359, 27809, 30989, 37513, 101821, 194663, 528371, 639607, 712747, 3698597, 4477249, 6479497, 12152533, 45356479, 85067731, 123110443, 149028431, 861773101, 1043199017, 2831540189, 19820781323]

約数ペア:

[(1, 19820781323), (7, 2831540189), (19, 1043199017), (23, 861773101), (133, 149028431), (161, 123110443), (233, 85067731), (437, 45356479), (1631, 12152533), (3059, 6479497), (4427, 4477249), (5359, 3698597), (27809, 712747), (30989, 639607), (37513, 528371), (101821, 194663)]