20179940781

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1321}}^1\times {\mathrm{5087}}^1$

素因数の和:6442

約数の個数: 64

約数和(自身を含む): 36160782336

約数和(自身を除く): 15980841555

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 1321, 3003, 3963, 5087, 9247, 14531, 15261, 17173, 27741, 35609, 43593, 51519, 55957, 66131, 101717, 106827, 120211, 167871, 188903, 198393, 305151, 360633, 391699, 462917, 566709, 727441, 1175097, 1322321, 1388751, 2182323, 3966963, 5092087, 6719927, 15276261, 20159781, 47039489, 73919197, 87359051, 141118467, 221757591, 262077153, 517434379, 611513357, 960949561, 1552303137, 1834540071, 2882848683, 6726646927, 20179940781]

約数ペア:

[(1, 20179940781), (3, 6726646927), (7, 2882848683), (11, 1834540071), (13, 1552303137), (21, 960949561), (33, 611513357), (39, 517434379), (77, 262077153), (91, 221757591), (143, 141118467), (231, 87359051), (273, 73919197), (429, 47039489), (1001, 20159781), (1321, 15276261), (3003, 6719927), (3963, 5092087), (5087, 3966963), (9247, 2182323), (14531, 1388751), (15261, 1322321), (17173, 1175097), (27741, 727441), (35609, 566709), (43593, 462917), (51519, 391699), (55957, 360633), (66131, 305151), (101717, 198393), (106827, 188903), (120211, 167871)]