28011487

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 34013952

約数和(自身を除く): 6002465

約数列:

[1, 7, 41, 49, 73, 191, 287, 511, 1337, 2009, 2993, 3577, 7831, 9359, 13943, 20951, 54817, 97601, 146657, 383719, 571663, 683207, 4001641, 28011487]

約数ペア:

[(1, 28011487), (7, 4001641), (41, 683207), (49, 571663), (73, 383719), (191, 146657), (287, 97601), (511, 54817), (1337, 20951), (2009, 13943), (2993, 9359), (3577, 7831)]