198261987

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{122611}}^1$

素因数の和:122639

約数の個数: 24

約数和(自身を含む): 335466432

約数和(自身を除く): 137204445

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 122611, 367833, 858277, 1348721, 2574831, 4046163, 6007939, 9441047, 18023817, 28323141, 66087329, 198261987]

約数ペア:

[(1, 198261987), (3, 66087329), (7, 28323141), (11, 18023817), (21, 9441047), (33, 6007939), (49, 4046163), (77, 2574831), (147, 1348721), (231, 858277), (539, 367833), (1617, 122611)]