19986005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16183}}^1$

素因数の和:16220

約数の個数: 16

約数和(自身を含む): 27189120

約数和(自身を除く): 7203115

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16183, 80915, 210379, 307477, 1051895, 1537385, 3997201, 19986005]

約数ペア:

[(1, 19986005), (5, 3997201), (13, 1537385), (19, 1051895), (65, 307477), (95, 210379), (247, 80915), (1235, 16183)]