19664164

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1580

約数の個数: 36

約数和(自身を含む): 39249840

約数和(自身を除く): 19585676

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 494, 676, 988, 1531, 3062, 3211, 6124, 6422, 12844, 19903, 29089, 39806, 58178, 79612, 116356, 258739, 378157, 517478, 756314, 1034956, 1512628, 4916041, 9832082, 19664164]

約数ペア:

[(1, 19664164), (2, 9832082), (4, 4916041), (13, 1512628), (19, 1034956), (26, 756314), (38, 517478), (52, 378157), (76, 258739), (169, 116356), (247, 79612), (338, 58178), (494, 39806), (676, 29089), (988, 19903), (1531, 12844), (3062, 6422), (3211, 6124)]