21082943

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:926

約数の個数: 16

約数和(自身を含む): 24963840

約数和(自身を除く): 3880897

約数列:

[1, 7, 43, 89, 301, 623, 787, 3827, 5509, 26789, 33841, 70043, 236887, 490301, 3011849, 21082943]

約数ペア:

[(1, 21082943), (7, 3011849), (43, 490301), (89, 236887), (301, 70043), (623, 33841), (787, 26789), (3827, 5509)]