20913437

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 22894080

約数和(自身を除く): 1980643

約数列:

[1, 29, 31, 43, 541, 899, 1247, 1333, 15689, 16771, 23263, 38657, 486359, 674627, 721153, 20913437]

約数ペア:

[(1, 20913437), (29, 721153), (31, 674627), (43, 486359), (541, 38657), (899, 23263), (1247, 16771), (1333, 15689)]