20681671

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 22579200

約数和(自身を除く): 1897529

約数列:

[1, 19, 41, 139, 191, 779, 2641, 3629, 5699, 7831, 26549, 108281, 148789, 504431, 1088509, 20681671]

約数ペア:

[(1, 20681671), (19, 1088509), (41, 504431), (139, 148789), (191, 108281), (779, 26549), (2641, 7831), (3629, 5699)]