18940559

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:490

約数の個数: 16

約数和(自身を含む): 21422880

約数和(自身を除く): 2482321

約数列:

[1, 11, 37, 173, 269, 407, 1903, 2959, 6401, 9953, 46537, 70411, 109483, 511907, 1721869, 18940559]

約数ペア:

[(1, 18940559), (11, 1721869), (37, 511907), (173, 109483), (269, 70411), (407, 46537), (1903, 9953), (2959, 6401)]