2531081

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:308

約数の個数: 16

約数和(自身を含む): 3072000

約数和(自身を除く): 540919

約数列:

[1, 7, 23, 79, 161, 199, 553, 1393, 1817, 4577, 12719, 15721, 32039, 110047, 361583, 2531081]

約数ペア:

[(1, 2531081), (7, 361583), (23, 110047), (79, 32039), (161, 15721), (199, 12719), (553, 4577), (1393, 1817)]