21389874

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{324089}}^1$

素因数の和:324105

約数の個数: 16

約数和(自身を含む): 46668960

約数和(自身を除く): 25279086

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 324089, 648178, 972267, 1944534, 3564979, 7129958, 10694937, 21389874]

約数ペア:

[(1, 21389874), (2, 10694937), (3, 7129958), (6, 3564979), (11, 1944534), (22, 972267), (33, 648178), (66, 324089)]