19428916

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:772

約数の個数: 36

約数和(自身を含む): 37769004

約数和(自身を除く): 18340088

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 169, 338, 533, 676, 701, 1066, 1402, 2132, 2804, 6929, 9113, 13858, 18226, 27716, 28741, 36452, 57482, 114964, 118469, 236938, 373633, 473876, 747266, 1494532, 4857229, 9714458, 19428916]

約数ペア:

[(1, 19428916), (2, 9714458), (4, 4857229), (13, 1494532), (26, 747266), (41, 473876), (52, 373633), (82, 236938), (164, 118469), (169, 114964), (338, 57482), (533, 36452), (676, 28741), (701, 27716), (1066, 18226), (1402, 13858), (2132, 9113), (2804, 6929)]