21536177

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{353}}^1$

素因数の和:417

約数の個数: 18

約数和(自身を含む): 24681942

約数和(自身を除く): 3145765

約数列:

[1, 13, 19, 169, 247, 353, 361, 3211, 4589, 4693, 6707, 59657, 61009, 87191, 127433, 1133483, 1656629, 21536177]

約数ペア:

[(1, 21536177), (13, 1656629), (19, 1133483), (169, 127433), (247, 87191), (353, 61009), (361, 59657), (3211, 6707), (4589, 4693)]