20400243

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1\times {\mathrm{773}}^1$

素因数の和:1258

約数の個数: 16

約数和(自身を含む): 28730880

約数和(自身を除く): 8330637

約数列:

[1, 3, 19, 57, 463, 773, 1389, 2319, 8797, 14687, 26391, 44061, 357899, 1073697, 6800081, 20400243]

約数ペア:

[(1, 20400243), (3, 6800081), (19, 1073697), (57, 357899), (463, 44061), (773, 26391), (1389, 14687), (2319, 8797)]