81368642

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1\times {\mathrm{1657}}^1$

素因数の和:2273

約数の個数: 16

約数和(自身を含む): 125185632

約数和(自身を除く): 43816990

約数列:

[1, 2, 43, 86, 571, 1142, 1657, 3314, 24553, 49106, 71251, 142502, 946147, 1892294, 40684321, 81368642]

約数ペア:

[(1, 81368642), (2, 40684321), (43, 1892294), (86, 946147), (571, 142502), (1142, 71251), (1657, 49106), (3314, 24553)]