20661966

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{9811}}^1$

素因数の和:9838

約数の個数: 40

約数和(自身を含む): 49864584

約数和(自身を除く): 29202618

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 702, 1053, 2106, 9811, 19622, 29433, 58866, 88299, 127543, 176598, 255086, 264897, 382629, 529794, 765258, 794691, 1147887, 1589382, 2295774, 3443661, 6887322, 10330983, 20661966]

約数ペア:

[(1, 20661966), (2, 10330983), (3, 6887322), (6, 3443661), (9, 2295774), (13, 1589382), (18, 1147887), (26, 794691), (27, 765258), (39, 529794), (54, 382629), (78, 264897), (81, 255086), (117, 176598), (162, 127543), (234, 88299), (351, 58866), (702, 29433), (1053, 19622), (2106, 9811)]