20212279

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 21795840

約数和(自身を除く): 1583561

約数列:

[1, 31, 43, 59, 257, 1333, 1829, 2537, 7967, 11051, 15163, 78647, 342581, 470053, 652009, 20212279]

約数ペア:

[(1, 20212279), (31, 652009), (43, 470053), (59, 342581), (257, 78647), (1333, 15163), (1829, 11051), (2537, 7967)]