18928858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16931}}^1$

素因数の和:16989

約数の個数: 16

約数和(自身を含む): 31290336

約数和(自身を除く): 12361478

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 16931, 33862, 220103, 440206, 728033, 1456066, 9464429, 18928858]

約数ペア:

[(1, 18928858), (2, 9464429), (13, 1456066), (26, 728033), (43, 440206), (86, 220103), (559, 33862), (1118, 16931)]