21557789143

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{28723}}^1$

素因数の和:28867

約数の個数: 24

約数和(自身を含む): 24643813248

約数和(自身を除く): 3086024105

約数列:

[1, 11, 31, 71, 341, 781, 961, 2201, 10571, 24211, 28723, 68231, 315953, 750541, 890413, 2039333, 9794543, 22432663, 27602803, 63219323, 303630833, 695412553, 1959799013, 21557789143]

約数ペア:

[(1, 21557789143), (11, 1959799013), (31, 695412553), (71, 303630833), (341, 63219323), (781, 27602803), (961, 22432663), (2201, 9794543), (10571, 2039333), (24211, 890413), (28723, 750541), (68231, 315953)]