20981114

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19463}}^1$

素因数の和:19490

約数の個数: 24

約数和(自身を含む): 39940128

約数和(自身を除く): 18959014

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19463, 38926, 136241, 214093, 272482, 428186, 953687, 1498651, 1907374, 2997302, 10490557, 20981114]

約数ペア:

[(1, 20981114), (2, 10490557), (7, 2997302), (11, 1907374), (14, 1498651), (22, 953687), (49, 428186), (77, 272482), (98, 214093), (154, 136241), (539, 38926), (1078, 19463)]