20885771

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 22800960

約数和(自身を除く): 1915189

約数列:

[1, 23, 29, 173, 181, 667, 3979, 4163, 5017, 5249, 31313, 115391, 120727, 720199, 908077, 20885771]

約数ペア:

[(1, 20885771), (23, 908077), (29, 720199), (173, 120727), (181, 115391), (667, 31313), (3979, 5249), (4163, 5017)]