20778268

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25589}}^1$

素因数の和:25629

約数の個数: 24

約数和(自身を含む): 42991200

約数和(自身を除く): 22212932

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25589, 51178, 102356, 179123, 358246, 716492, 742081, 1484162, 2968324, 5194567, 10389134, 20778268]

約数ペア:

[(1, 20778268), (2, 10389134), (4, 5194567), (7, 2968324), (14, 1484162), (28, 742081), (29, 716492), (58, 358246), (116, 179123), (203, 102356), (406, 51178), (812, 25589)]