21339417

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17477}}^1$

素因数の和:17528

約数の個数: 16

約数和(自身を含む): 31879872

約数和(自身を除く): 10540455

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17477, 52431, 192247, 576741, 646649, 1939947, 7113139, 21339417]

約数ペア:

[(1, 21339417), (3, 7113139), (11, 1939947), (33, 646649), (37, 576741), (111, 192247), (407, 52431), (1221, 17477)]