20667231

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1033}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 35031920

約数和(自身を除く): 14364689

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 171, 247, 351, 513, 741, 1033, 1053, 1539, 2223, 3099, 6669, 9297, 13429, 19627, 20007, 27891, 40287, 58881, 83673, 120861, 176643, 255151, 362583, 529929, 765453, 1087749, 1589787, 2296359, 6889077, 20667231]

約数ペア:

[(1, 20667231), (3, 6889077), (9, 2296359), (13, 1589787), (19, 1087749), (27, 765453), (39, 529929), (57, 362583), (81, 255151), (117, 176643), (171, 120861), (247, 83673), (351, 58881), (513, 40287), (741, 27891), (1033, 20007), (1053, 19627), (1539, 13429), (2223, 9297), (3099, 6669)]