20558727

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5531}}^1$

素因数の和:5603

約数の個数: 24

約数和(自身を含む): 34519680

約数和(自身を除く): 13960953

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5531, 16593, 38717, 49779, 116151, 326329, 348453, 978987, 2284303, 2936961, 6852909, 20558727]

約数ペア:

[(1, 20558727), (3, 6852909), (7, 2936961), (9, 2284303), (21, 978987), (59, 348453), (63, 326329), (177, 116151), (413, 49779), (531, 38717), (1239, 16593), (3717, 5531)]