18315791

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2557}}^1$

素因数の和:2618

約数の個数: 16

約数和(自身を含む): 21487200

約数和(自身を除く): 3171409

約数列:

[1, 13, 19, 29, 247, 377, 551, 2557, 7163, 33241, 48583, 74153, 631579, 963989, 1408907, 18315791]

約数ペア:

[(1, 18315791), (13, 1408907), (19, 963989), (29, 631579), (247, 74153), (377, 48583), (551, 33241), (2557, 7163)]