201920719

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28817}}^1$

素因数の和:28855

約数の個数: 24

約数和(自身を含む): 275961168

約数和(自身を除く): 74040449

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 7007, 28817, 201719, 316987, 374621, 1412033, 2218909, 2622347, 4120831, 15532363, 18356429, 28845817, 201920719]

約数ペア:

[(1, 201920719), (7, 28845817), (11, 18356429), (13, 15532363), (49, 4120831), (77, 2622347), (91, 2218909), (143, 1412033), (539, 374621), (637, 316987), (1001, 201719), (7007, 28817)]