638209173

素因数分解:

$3^1\times 7^2\times {\mathrm{733}}^1\times {\mathrm{5923}}^1$

素因数の和:6673

約数の個数: 24

約数和(自身を含む): 991393248

約数和(自身を除く): 353184075

約数列:

[1, 3, 7, 21, 49, 147, 733, 2199, 5131, 5923, 15393, 17769, 35917, 41461, 107751, 124383, 290227, 870681, 4341559, 13024677, 30390913, 91172739, 212736391, 638209173]

約数ペア:

[(1, 638209173), (3, 212736391), (7, 91172739), (21, 30390913), (49, 13024677), (147, 4341559), (733, 870681), (2199, 290227), (5131, 124383), (5923, 107751), (15393, 41461), (17769, 35917)]