20206881

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 31363200

約数和(自身を除く): 11156319

約数列:

[1, 3, 9, 27, 29, 87, 131, 197, 261, 393, 591, 783, 1179, 1773, 3537, 3799, 5319, 5713, 11397, 17139, 25807, 34191, 51417, 77421, 102573, 154251, 232263, 696789, 748403, 2245209, 6735627, 20206881]

約数ペア:

[(1, 20206881), (3, 6735627), (9, 2245209), (27, 748403), (29, 696789), (87, 232263), (131, 154251), (197, 102573), (261, 77421), (393, 51417), (591, 34191), (783, 25807), (1179, 17139), (1773, 11397), (3537, 5713), (3799, 5319)]