20875547

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{751}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 27505152

約数和(自身を除く): 6629605

約数列:

[1, 7, 11, 19, 77, 133, 209, 361, 751, 1463, 2527, 3971, 5257, 8261, 14269, 27797, 57827, 99883, 156959, 271111, 1098713, 1897777, 2982221, 20875547]

約数ペア:

[(1, 20875547), (7, 2982221), (11, 1897777), (19, 1098713), (77, 271111), (133, 156959), (209, 99883), (361, 57827), (751, 27797), (1463, 14269), (2527, 8261), (3971, 5257)]