18904834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5231}}^1$

素因数の和:5385

約数の個数: 16

約数和(自身を含む): 30764160

約数和(自身を除く): 11859326

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5231, 10462, 68003, 136006, 727109, 1454218, 9452417, 18904834]

約数ペア:

[(1, 18904834), (2, 9452417), (13, 1454218), (26, 727109), (139, 136006), (278, 68003), (1807, 10462), (3614, 5231)]