19879145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{27803}}^1$

素因数の和:27832

約数の個数: 16

約数和(自身を含む): 28026432

約数和(自身を除く): 8147287

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 27803, 139015, 305833, 361439, 1529165, 1807195, 3975829, 19879145]

約数ペア:

[(1, 19879145), (5, 3975829), (11, 1807195), (13, 1529165), (55, 361439), (65, 305833), (143, 139015), (715, 27803)]