21119546

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{28463}}^1$

素因数の和:28525

約数の個数: 16

約数和(自身を含む): 36889344

約数和(自身を除く): 15769798

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 28463, 56926, 199241, 398482, 1508539, 3017078, 10559773, 21119546]

約数ペア:

[(1, 21119546), (2, 10559773), (7, 3017078), (14, 1508539), (53, 398482), (106, 199241), (371, 56926), (742, 28463)]