18391229

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 20180160

約数和(自身を除く): 1788931

約数列:

[1, 17, 43, 139, 181, 731, 2363, 3077, 5977, 7783, 25159, 101609, 132311, 427703, 1081837, 18391229]

約数ペア:

[(1, 18391229), (17, 1081837), (43, 427703), (139, 132311), (181, 101609), (731, 25159), (2363, 7783), (3077, 5977)]