20291464

素因数分解:

$2^3\times {\mathrm{397}}^1\times {\mathrm{6389}}^1$

素因数の和:6792

約数の個数: 16

約数和(自身を含む): 38148300

約数和(自身を除く): 17856836

約数列:

[1, 2, 4, 8, 397, 794, 1588, 3176, 6389, 12778, 25556, 51112, 2536433, 5072866, 10145732, 20291464]

約数ペア:

[(1, 20291464), (2, 10145732), (4, 5072866), (8, 2536433), (397, 51112), (794, 25556), (1588, 12778), (3176, 6389)]