81966978

素因数分解:

$2^1\times 3^4\times {\mathrm{505969}}^1$

素因数の和:505983

約数の個数: 20

約数和(自身を含む): 183667110

約数和(自身を除く): 101700132

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 505969, 1011938, 1517907, 3035814, 4553721, 9107442, 13661163, 27322326, 40983489, 81966978]

約数ペア:

[(1, 81966978), (2, 40983489), (3, 27322326), (6, 13661163), (9, 9107442), (18, 4553721), (27, 3035814), (54, 1517907), (81, 1011938), (162, 505969)]