87871651

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{229}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 105719040

約数和(自身を除く): 17847389

約数列:

[1, 7, 41, 49, 191, 229, 287, 1337, 1603, 2009, 7831, 9359, 9389, 11221, 43739, 54817, 65723, 306173, 383719, 460061, 1793299, 2143211, 12553093, 87871651]

約数ペア:

[(1, 87871651), (7, 12553093), (41, 2143211), (49, 1793299), (191, 460061), (229, 383719), (287, 306173), (1337, 65723), (1603, 54817), (2009, 43739), (7831, 11221), (9359, 9389)]