20391503

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2269}}^1$

素因数の和:2342

約数の個数: 16

約数和(自身を含む): 23971200

約数和(自身を除く): 3579697

約数列:

[1, 11, 19, 43, 209, 473, 817, 2269, 8987, 24959, 43111, 97567, 474221, 1073237, 1853773, 20391503]

約数ペア:

[(1, 20391503), (11, 1853773), (19, 1073237), (43, 474221), (209, 97567), (473, 43111), (817, 24959), (2269, 8987)]