20821922

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:782

約数の個数: 24

約数和(自身を含む): 34633200

約数和(自身を除く): 13811278

約数列:

[1, 2, 11, 22, 121, 139, 242, 278, 619, 1238, 1529, 3058, 6809, 13618, 16819, 33638, 74899, 86041, 149798, 172082, 946451, 1892902, 10410961, 20821922]

約数ペア:

[(1, 20821922), (2, 10410961), (11, 1892902), (22, 946451), (121, 172082), (139, 149798), (242, 86041), (278, 74899), (619, 33638), (1238, 16819), (1529, 13618), (3058, 6809)]