20897441

素因数分解:

${\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:392

約数の個数: 16

約数和(自身を含む): 22522368

約数和(自身を除く): 1624927

約数列:

[1, 31, 43, 61, 257, 1333, 1891, 2623, 7967, 11051, 15677, 81313, 342581, 485987, 674111, 20897441]

約数ペア:

[(1, 20897441), (31, 674111), (43, 485987), (61, 342581), (257, 81313), (1333, 15677), (1891, 11051), (2623, 7967)]