20755878

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1423}}^1$

素因数の和:1469

約数の個数: 64

約数和(自身を含む): 51674112

約数和(自身を除く): 30918234

約数列:

[1, 2, 3, 6, 11, 13, 17, 22, 26, 33, 34, 39, 51, 66, 78, 102, 143, 187, 221, 286, 374, 429, 442, 561, 663, 858, 1122, 1326, 1423, 2431, 2846, 4269, 4862, 7293, 8538, 14586, 15653, 18499, 24191, 31306, 36998, 46959, 48382, 55497, 72573, 93918, 110994, 145146, 203489, 266101, 314483, 406978, 532202, 610467, 628966, 798303, 943449, 1220934, 1596606, 1886898, 3459313, 6918626, 10377939, 20755878]

約数ペア:

[(1, 20755878), (2, 10377939), (3, 6918626), (6, 3459313), (11, 1886898), (13, 1596606), (17, 1220934), (22, 943449), (26, 798303), (33, 628966), (34, 610467), (39, 532202), (51, 406978), (66, 314483), (78, 266101), (102, 203489), (143, 145146), (187, 110994), (221, 93918), (286, 72573), (374, 55497), (429, 48382), (442, 46959), (561, 36998), (663, 31306), (858, 24191), (1122, 18499), (1326, 15653), (1423, 14586), (2431, 8538), (2846, 7293), (4269, 4862)]