20784834

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{563}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 51734592

約数和(自身を除く): 30949758

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 293, 563, 586, 879, 1126, 1689, 1758, 2051, 2637, 3378, 3941, 4102, 5067, 5274, 6153, 7882, 10134, 11823, 12306, 18459, 23646, 35469, 36918, 70938, 164959, 329918, 494877, 989754, 1154713, 1484631, 2309426, 2969262, 3464139, 6928278, 10392417, 20784834]

約数ペア:

[(1, 20784834), (2, 10392417), (3, 6928278), (6, 3464139), (7, 2969262), (9, 2309426), (14, 1484631), (18, 1154713), (21, 989754), (42, 494877), (63, 329918), (126, 164959), (293, 70938), (563, 36918), (586, 35469), (879, 23646), (1126, 18459), (1689, 12306), (1758, 11823), (2051, 10134), (2637, 7882), (3378, 6153), (3941, 5274), (4102, 5067)]