20805122019

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2969}}^1\times {\mathrm{12491}}^1$

素因数の和:15491

約数の個数: 32

約数和(自身を含む): 32055471360

約数和(自身を除く): 11250349341

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 2969, 8907, 12491, 32659, 37473, 50473, 97977, 137401, 151419, 212347, 412203, 555203, 637041, 1665609, 2335817, 7007451, 37085779, 111257337, 407943569, 630458243, 1223830707, 1891374729, 6935040673, 20805122019]

約数ペア:

[(1, 20805122019), (3, 6935040673), (11, 1891374729), (17, 1223830707), (33, 630458243), (51, 407943569), (187, 111257337), (561, 37085779), (2969, 7007451), (8907, 2335817), (12491, 1665609), (32659, 637041), (37473, 555203), (50473, 412203), (97977, 212347), (137401, 151419)]