27657987

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 43676160

約数和(自身を除く): 16018173

約数列:

[1, 3, 7, 21, 43, 109, 129, 281, 301, 327, 763, 843, 903, 1967, 2289, 4687, 5901, 12083, 14061, 30629, 32809, 36249, 84581, 91887, 98427, 214403, 253743, 643209, 1317047, 3951141, 9219329, 27657987]

約数ペア:

[(1, 27657987), (3, 9219329), (7, 3951141), (21, 1317047), (43, 643209), (109, 253743), (129, 214403), (281, 98427), (301, 91887), (327, 84581), (763, 36249), (843, 32809), (903, 30629), (1967, 14061), (2289, 12083), (4687, 5901)]