20890738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{7477}}^1$

素因数の和:7617

約数の個数: 16

約数和(自身を含む): 34458624

約数和(自身を除く): 13567886

約数列:

[1, 2, 11, 22, 127, 254, 1397, 2794, 7477, 14954, 82247, 164494, 949579, 1899158, 10445369, 20890738]

約数ペア:

[(1, 20890738), (2, 10445369), (11, 1899158), (22, 949579), (127, 164494), (254, 82247), (1397, 14954), (2794, 7477)]