20565189

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{967}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 31711680

約数和(自身を除く): 11146491

約数列:

[1, 3, 9, 17, 51, 139, 153, 417, 967, 1251, 2363, 2901, 7089, 8703, 16439, 21267, 49317, 134413, 147951, 403239, 1209717, 2285021, 6855063, 20565189]

約数ペア:

[(1, 20565189), (3, 6855063), (9, 2285021), (17, 1209717), (51, 403239), (139, 147951), (153, 134413), (417, 49317), (967, 21267), (1251, 16439), (2363, 8703), (2901, 7089)]